40478360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1$

素因数の和:301

約数の個数: 128

約数和(自身を含む): 109771200

約数和(自身を除く): 69292840

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 85, 95, 104, 130, 136, 152, 170, 190, 221, 241, 247, 260, 323, 340, 380, 442, 482, 494, 520, 646, 680, 760, 884, 964, 988, 1105, 1205, 1235, 1292, 1615, 1768, 1928, 1976, 2210, 2410, 2470, 2584, 3133, 3230, 4097, 4199, 4420, 4579, 4820, 4940, 6266, 6460, 8194, 8398, 8840, 9158, 9640, 9880, 12532, 12920, 15665, 16388, 16796, 18316, 20485, 20995, 22895, 25064, 31330, 32776, 33592, 36632, 40970, 41990, 45790, 53261, 59527, 62660, 77843, 81940, 83980, 91580, 106522, 119054, 125320, 155686, 163880, 167960, 183160, 213044, 238108, 266305, 297635, 311372, 389215, 426088, 476216, 532610, 595270, 622744, 778430, 1011959, 1065220, 1190540, 1556860, 2023918, 2130440, 2381080, 3113720, 4047836, 5059795, 8095672, 10119590, 20239180, 40478360]

約数ペア:

[(1, 40478360), (2, 20239180), (4, 10119590), (5, 8095672), (8, 5059795), (10, 4047836), (13, 3113720), (17, 2381080), (19, 2130440), (20, 2023918), (26, 1556860), (34, 1190540), (38, 1065220), (40, 1011959), (52, 778430), (65, 622744), (68, 595270), (76, 532610), (85, 476216), (95, 426088), (104, 389215), (130, 311372), (136, 297635), (152, 266305), (170, 238108), (190, 213044), (221, 183160), (241, 167960), (247, 163880), (260, 155686), (323, 125320), (340, 119054), (380, 106522), (442, 91580), (482, 83980), (494, 81940), (520, 77843), (646, 62660), (680, 59527), (760, 53261), (884, 45790), (964, 41990), (988, 40970), (1105, 36632), (1205, 33592), (1235, 32776), (1292, 31330), (1615, 25064), (1768, 22895), (1928, 20995), (1976, 20485), (2210, 18316), (2410, 16796), (2470, 16388), (2584, 15665), (3133, 12920), (3230, 12532), (4097, 9880), (4199, 9640), (4420, 9158), (4579, 8840), (4820, 8398), (4940, 8194), (6266, 6460)]