406720

素因数分解:

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

素因数の和:89

約数の個数: 56

約数和(自身を含む): 1024128

約数和(自身を除く): 617408

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, 320, 328, 410, 496, 620, 656, 820, 992, 1240, 1271, 1312, 1640, 1984, 2480, 2542, 2624, 3280, 4960, 5084, 6355, 6560, 9920, 10168, 12710, 13120, 20336, 25420, 40672, 50840, 81344, 101680, 203360, 406720]

約数ペア:

[(1, 406720), (2, 203360), (4, 101680), (5, 81344), (8, 50840), (10, 40672), (16, 25420), (20, 20336), (31, 13120), (32, 12710), (40, 10168), (41, 9920), (62, 6560), (64, 6355), (80, 5084), (82, 4960), (124, 3280), (155, 2624), (160, 2542), (164, 2480), (205, 1984), (248, 1640), (310, 1312), (320, 1271), (328, 1240), (410, 992), (496, 820), (620, 656)]