81221040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{112807}}^1$

素因数の和:112826

約数の個数: 60

約数和(自身を含む): 272769744

約数和(自身を除く): 191548704

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 112807, 225614, 338421, 451228, 564035, 676842, 902456, 1015263, 1128070, 1353684, 1692105, 1804912, 2030526, 2256140, 2707368, 3384210, 4061052, 4512280, 5076315, 5414736, 6768420, 8122104, 9024560, 10152630, 13536840, 16244208, 20305260, 27073680, 40610520, 81221040]

約数ペア:

[(1, 81221040), (2, 40610520), (3, 27073680), (4, 20305260), (5, 16244208), (6, 13536840), (8, 10152630), (9, 9024560), (10, 8122104), (12, 6768420), (15, 5414736), (16, 5076315), (18, 4512280), (20, 4061052), (24, 3384210), (30, 2707368), (36, 2256140), (40, 2030526), (45, 1804912), (48, 1692105), (60, 1353684), (72, 1128070), (80, 1015263), (90, 902456), (120, 676842), (144, 564035), (180, 451228), (240, 338421), (360, 225614), (720, 112807)]