217416640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{101}}^1$

素因数の和:187

約数の個数: 168

約数和(自身を含む): 617439456

約数和(自身を除く): 400022816

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, 140, 155, 160, 202, 217, 224, 248, 280, 310, 320, 404, 434, 448, 496, 505, 560, 620, 707, 808, 868, 961, 992, 1010, 1085, 1120, 1240, 1414, 1616, 1736, 1922, 1984, 2020, 2170, 2240, 2480, 2828, 3131, 3232, 3472, 3535, 3844, 4040, 4340, 4805, 4960, 5656, 6262, 6464, 6727, 6944, 7070, 7688, 8080, 8680, 9610, 9920, 11312, 12524, 13454, 13888, 14140, 15376, 15655, 16160, 17360, 19220, 21917, 22624, 25048, 26908, 28280, 30752, 31310, 32320, 33635, 34720, 38440, 43834, 45248, 50096, 53816, 56560, 61504, 62620, 67270, 69440, 76880, 87668, 97061, 100192, 107632, 109585, 113120, 125240, 134540, 153760, 175336, 194122, 200384, 215264, 219170, 226240, 250480, 269080, 307520, 350672, 388244, 430528, 438340, 485305, 500960, 538160, 679427, 701344, 776488, 876680, 970610, 1001920, 1076320, 1358854, 1402688, 1552976, 1753360, 1941220, 2152640, 2717708, 3105952, 3397135, 3506720, 3882440, 5435416, 6211904, 6794270, 7013440, 7764880, 10870832, 13588540, 15529760, 21741664, 27177080, 31059520, 43483328, 54354160, 108708320, 217416640]

約数ペア:

[(1, 217416640), (2, 108708320), (4, 54354160), (5, 43483328), (7, 31059520), (8, 27177080), (10, 21741664), (14, 15529760), (16, 13588540), (20, 10870832), (28, 7764880), (31, 7013440), (32, 6794270), (35, 6211904), (40, 5435416), (56, 3882440), (62, 3506720), (64, 3397135), (70, 3105952), (80, 2717708), (101, 2152640), (112, 1941220), (124, 1753360), (140, 1552976), (155, 1402688), (160, 1358854), (202, 1076320), (217, 1001920), (224, 970610), (248, 876680), (280, 776488), (310, 701344), (320, 679427), (404, 538160), (434, 500960), (448, 485305), (496, 438340), (505, 430528), (560, 388244), (620, 350672), (707, 307520), (808, 269080), (868, 250480), (961, 226240), (992, 219170), (1010, 215264), (1085, 200384), (1120, 194122), (1240, 175336), (1414, 153760), (1616, 134540), (1736, 125240), (1922, 113120), (1984, 109585), (2020, 107632), (2170, 100192), (2240, 97061), (2480, 87668), (2828, 76880), (3131, 69440), (3232, 67270), (3472, 62620), (3535, 61504), (3844, 56560), (4040, 53816), (4340, 50096), (4805, 45248), (4960, 43834), (5656, 38440), (6262, 34720), (6464, 33635), (6727, 32320), (6944, 31310), (7070, 30752), (7688, 28280), (8080, 26908), (8680, 25048), (9610, 22624), (9920, 21917), (11312, 19220), (12524, 17360), (13454, 16160), (13888, 15655), (14140, 15376)]