406779520

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:187

約数の個数: 256

約数和(自身を含む): 1198540800

約数和(自身を除く): 791761280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 31, 32, 35, 40, 56, 58, 62, 64, 70, 80, 101, 112, 116, 124, 128, 140, 145, 155, 160, 202, 203, 217, 224, 232, 248, 280, 290, 310, 320, 404, 406, 434, 448, 464, 496, 505, 560, 580, 620, 640, 707, 808, 812, 868, 896, 899, 928, 992, 1010, 1015, 1085, 1120, 1160, 1240, 1414, 1616, 1624, 1736, 1798, 1856, 1984, 2020, 2030, 2170, 2240, 2320, 2480, 2828, 2929, 3131, 3232, 3248, 3472, 3535, 3596, 3712, 3968, 4040, 4060, 4340, 4480, 4495, 4640, 4960, 5656, 5858, 6262, 6293, 6464, 6496, 6944, 7070, 7192, 8080, 8120, 8680, 8990, 9280, 9920, 11312, 11716, 12524, 12586, 12928, 12992, 13888, 14140, 14384, 14645, 15655, 16160, 16240, 17360, 17980, 18560, 19840, 20503, 21917, 22624, 23432, 25048, 25172, 25984, 27776, 28280, 28768, 29290, 31310, 31465, 32320, 32480, 34720, 35960, 41006, 43834, 45248, 46864, 50096, 50344, 56560, 57536, 58580, 62620, 62930, 64640, 64960, 69440, 71920, 82012, 87668, 90496, 90799, 93728, 100192, 100688, 102515, 109585, 113120, 115072, 117160, 125240, 125860, 129920, 138880, 143840, 164024, 175336, 181598, 187456, 200384, 201376, 205030, 219170, 226240, 234320, 250480, 251720, 287680, 328048, 350672, 363196, 374912, 400768, 402752, 410060, 438340, 452480, 453995, 468640, 500960, 503440, 575360, 635593, 656096, 701344, 726392, 805504, 820120, 876680, 907990, 937280, 1001920, 1006880, 1271186, 1312192, 1402688, 1452784, 1640240, 1753360, 1815980, 1874560, 2003840, 2013760, 2542372, 2624384, 2805376, 2905568, 3177965, 3280480, 3506720, 3631960, 4027520, 5084744, 5811136, 6355930, 6560960, 7013440, 7263920, 10169488, 11622272, 12711860, 13121920, 14026880, 14527840, 20338976, 25423720, 29055680, 40677952, 50847440, 58111360, 81355904, 101694880, 203389760, 406779520]

約数ペア:

[(1, 406779520), (2, 203389760), (4, 101694880), (5, 81355904), (7, 58111360), (8, 50847440), (10, 40677952), (14, 29055680), (16, 25423720), (20, 20338976), (28, 14527840), (29, 14026880), (31, 13121920), (32, 12711860), (35, 11622272), (40, 10169488), (56, 7263920), (58, 7013440), (62, 6560960), (64, 6355930), (70, 5811136), (80, 5084744), (101, 4027520), (112, 3631960), (116, 3506720), (124, 3280480), (128, 3177965), (140, 2905568), (145, 2805376), (155, 2624384), (160, 2542372), (202, 2013760), (203, 2003840), (217, 1874560), (224, 1815980), (232, 1753360), (248, 1640240), (280, 1452784), (290, 1402688), (310, 1312192), (320, 1271186), (404, 1006880), (406, 1001920), (434, 937280), (448, 907990), (464, 876680), (496, 820120), (505, 805504), (560, 726392), (580, 701344), (620, 656096), (640, 635593), (707, 575360), (808, 503440), (812, 500960), (868, 468640), (896, 453995), (899, 452480), (928, 438340), (992, 410060), (1010, 402752), (1015, 400768), (1085, 374912), (1120, 363196), (1160, 350672), (1240, 328048), (1414, 287680), (1616, 251720), (1624, 250480), (1736, 234320), (1798, 226240), (1856, 219170), (1984, 205030), (2020, 201376), (2030, 200384), (2170, 187456), (2240, 181598), (2320, 175336), (2480, 164024), (2828, 143840), (2929, 138880), (3131, 129920), (3232, 125860), (3248, 125240), (3472, 117160), (3535, 115072), (3596, 113120), (3712, 109585), (3968, 102515), (4040, 100688), (4060, 100192), (4340, 93728), (4480, 90799), (4495, 90496), (4640, 87668), (4960, 82012), (5656, 71920), (5858, 69440), (6262, 64960), (6293, 64640), (6464, 62930), (6496, 62620), (6944, 58580), (7070, 57536), (7192, 56560), (8080, 50344), (8120, 50096), (8680, 46864), (8990, 45248), (9280, 43834), (9920, 41006), (11312, 35960), (11716, 34720), (12524, 32480), (12586, 32320), (12928, 31465), (12992, 31310), (13888, 29290), (14140, 28768), (14384, 28280), (14645, 27776), (15655, 25984), (16160, 25172), (16240, 25048), (17360, 23432), (17980, 22624), (18560, 21917), (19840, 20503)]