126489920

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:400

約数の個数: 112

約数和(自身を含む): 319527936

約数和(自身を除く): 193038016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 124, 155, 160, 164, 205, 248, 310, 311, 320, 328, 410, 496, 620, 622, 656, 820, 992, 1240, 1244, 1271, 1312, 1555, 1640, 1984, 2480, 2488, 2542, 2624, 3110, 3280, 4960, 4976, 5084, 6220, 6355, 6560, 9641, 9920, 9952, 10168, 12440, 12710, 12751, 13120, 19282, 19904, 20336, 24880, 25420, 25502, 38564, 40672, 48205, 49760, 50840, 51004, 63755, 77128, 81344, 96410, 99520, 101680, 102008, 127510, 154256, 192820, 203360, 204016, 255020, 308512, 385640, 395281, 406720, 408032, 510040, 617024, 771280, 790562, 816064, 1020080, 1542560, 1581124, 1976405, 2040160, 3085120, 3162248, 3952810, 4080320, 6324496, 7905620, 12648992, 15811240, 25297984, 31622480, 63244960, 126489920]

約数ペア:

[(1, 126489920), (2, 63244960), (4, 31622480), (5, 25297984), (8, 15811240), (10, 12648992), (16, 7905620), (20, 6324496), (31, 4080320), (32, 3952810), (40, 3162248), (41, 3085120), (62, 2040160), (64, 1976405), (80, 1581124), (82, 1542560), (124, 1020080), (155, 816064), (160, 790562), (164, 771280), (205, 617024), (248, 510040), (310, 408032), (311, 406720), (320, 395281), (328, 385640), (410, 308512), (496, 255020), (620, 204016), (622, 203360), (656, 192820), (820, 154256), (992, 127510), (1240, 102008), (1244, 101680), (1271, 99520), (1312, 96410), (1555, 81344), (1640, 77128), (1984, 63755), (2480, 51004), (2488, 50840), (2542, 49760), (2624, 48205), (3110, 40672), (3280, 38564), (4960, 25502), (4976, 25420), (5084, 24880), (6220, 20336), (6355, 19904), (6560, 19282), (9641, 13120), (9920, 12751), (9952, 12710), (10168, 12440)]