28053760

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:160

約数の個数: 144

約数和(自身を含む): 80059392

約数和(自身を除く): 52005632

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 101, 112, 124, 128, 140, 155, 160, 202, 217, 224, 248, 256, 280, 310, 320, 404, 434, 448, 496, 505, 560, 620, 640, 707, 808, 868, 896, 992, 1010, 1085, 1120, 1240, 1280, 1414, 1616, 1736, 1792, 1984, 2020, 2170, 2240, 2480, 2828, 3131, 3232, 3472, 3535, 3968, 4040, 4340, 4480, 4960, 5656, 6262, 6464, 6944, 7070, 7936, 8080, 8680, 8960, 9920, 11312, 12524, 12928, 13888, 14140, 15655, 16160, 17360, 19840, 21917, 22624, 25048, 25856, 27776, 28280, 31310, 32320, 34720, 39680, 43834, 45248, 50096, 55552, 56560, 62620, 64640, 69440, 87668, 90496, 100192, 109585, 113120, 125240, 129280, 138880, 175336, 180992, 200384, 219170, 226240, 250480, 277760, 350672, 400768, 438340, 452480, 500960, 701344, 801536, 876680, 904960, 1001920, 1402688, 1753360, 2003840, 2805376, 3506720, 4007680, 5610752, 7013440, 14026880, 28053760]

約数ペア:

[(1, 28053760), (2, 14026880), (4, 7013440), (5, 5610752), (7, 4007680), (8, 3506720), (10, 2805376), (14, 2003840), (16, 1753360), (20, 1402688), (28, 1001920), (31, 904960), (32, 876680), (35, 801536), (40, 701344), (56, 500960), (62, 452480), (64, 438340), (70, 400768), (80, 350672), (101, 277760), (112, 250480), (124, 226240), (128, 219170), (140, 200384), (155, 180992), (160, 175336), (202, 138880), (217, 129280), (224, 125240), (248, 113120), (256, 109585), (280, 100192), (310, 90496), (320, 87668), (404, 69440), (434, 64640), (448, 62620), (496, 56560), (505, 55552), (560, 50096), (620, 45248), (640, 43834), (707, 39680), (808, 34720), (868, 32320), (896, 31310), (992, 28280), (1010, 27776), (1085, 25856), (1120, 25048), (1240, 22624), (1280, 21917), (1414, 19840), (1616, 17360), (1736, 16160), (1792, 15655), (1984, 14140), (2020, 13888), (2170, 12928), (2240, 12524), (2480, 11312), (2828, 9920), (3131, 8960), (3232, 8680), (3472, 8080), (3535, 7936), (3968, 7070), (4040, 6944), (4340, 6464), (4480, 6262), (4960, 5656)]