815210520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{399613}}^1$

素因数の和:399644

約数の個数: 64

約数和(自身を含む): 2589498720

約数和(自身を除く): 1774288200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 399613, 799226, 1198839, 1598452, 1998065, 2397678, 3196904, 3996130, 4795356, 5994195, 6793421, 7992260, 9590712, 11988390, 13586842, 15984520, 20380263, 23976780, 27173684, 33967105, 40760526, 47953560, 54347368, 67934210, 81521052, 101901315, 135868420, 163042104, 203802630, 271736840, 407605260, 815210520]

約数ペア:

[(1, 815210520), (2, 407605260), (3, 271736840), (4, 203802630), (5, 163042104), (6, 135868420), (8, 101901315), (10, 81521052), (12, 67934210), (15, 54347368), (17, 47953560), (20, 40760526), (24, 33967105), (30, 27173684), (34, 23976780), (40, 20380263), (51, 15984520), (60, 13586842), (68, 11988390), (85, 9590712), (102, 7992260), (120, 6793421), (136, 5994195), (170, 4795356), (204, 3996130), (255, 3196904), (340, 2397678), (408, 1998065), (510, 1598452), (680, 1198839), (1020, 799226), (2040, 399613)]