252979840

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:402

約数の個数: 128

約数和(自身を含む): 641571840

約数和(自身を除く): 388592000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 124, 128, 155, 160, 164, 205, 248, 310, 311, 320, 328, 410, 496, 620, 622, 640, 656, 820, 992, 1240, 1244, 1271, 1312, 1555, 1640, 1984, 2480, 2488, 2542, 2624, 3110, 3280, 3968, 4960, 4976, 5084, 5248, 6220, 6355, 6560, 9641, 9920, 9952, 10168, 12440, 12710, 12751, 13120, 19282, 19840, 19904, 20336, 24880, 25420, 25502, 26240, 38564, 39808, 40672, 48205, 49760, 50840, 51004, 63755, 77128, 81344, 96410, 99520, 101680, 102008, 127510, 154256, 162688, 192820, 199040, 203360, 204016, 255020, 308512, 385640, 395281, 406720, 408032, 510040, 617024, 771280, 790562, 813440, 816064, 1020080, 1234048, 1542560, 1581124, 1632128, 1976405, 2040160, 3085120, 3162248, 3952810, 4080320, 6170240, 6324496, 7905620, 8160640, 12648992, 15811240, 25297984, 31622480, 50595968, 63244960, 126489920, 252979840]

約数ペア:

[(1, 252979840), (2, 126489920), (4, 63244960), (5, 50595968), (8, 31622480), (10, 25297984), (16, 15811240), (20, 12648992), (31, 8160640), (32, 7905620), (40, 6324496), (41, 6170240), (62, 4080320), (64, 3952810), (80, 3162248), (82, 3085120), (124, 2040160), (128, 1976405), (155, 1632128), (160, 1581124), (164, 1542560), (205, 1234048), (248, 1020080), (310, 816064), (311, 813440), (320, 790562), (328, 771280), (410, 617024), (496, 510040), (620, 408032), (622, 406720), (640, 395281), (656, 385640), (820, 308512), (992, 255020), (1240, 204016), (1244, 203360), (1271, 199040), (1312, 192820), (1555, 162688), (1640, 154256), (1984, 127510), (2480, 102008), (2488, 101680), (2542, 99520), (2624, 96410), (3110, 81344), (3280, 77128), (3968, 63755), (4960, 51004), (4976, 50840), (5084, 49760), (5248, 48205), (6220, 40672), (6355, 39808), (6560, 38564), (9641, 26240), (9920, 25502), (9952, 25420), (10168, 24880), (12440, 20336), (12710, 19904), (12751, 19840), (13120, 19282)]