409537280

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10321}}^1$

素因数の和:10373

約数の個数: 72

約数和(自身を含む): 1012712064

約数和(自身を除く): 603174784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 10321, 19840, 20642, 39680, 41284, 51605, 82568, 103210, 165136, 206420, 319951, 330272, 412840, 639902, 660544, 825680, 1279804, 1321088, 1599755, 1651360, 2559608, 2642176, 3199510, 3302720, 5119216, 6399020, 6605440, 10238432, 12798040, 13210880, 20476864, 25596080, 40953728, 51192160, 81907456, 102384320, 204768640, 409537280]

約数ペア:

[(1, 409537280), (2, 204768640), (4, 102384320), (5, 81907456), (8, 51192160), (10, 40953728), (16, 25596080), (20, 20476864), (31, 13210880), (32, 12798040), (40, 10238432), (62, 6605440), (64, 6399020), (80, 5119216), (124, 3302720), (128, 3199510), (155, 2642176), (160, 2559608), (248, 1651360), (256, 1599755), (310, 1321088), (320, 1279804), (496, 825680), (620, 660544), (640, 639902), (992, 412840), (1240, 330272), (1280, 319951), (1984, 206420), (2480, 165136), (3968, 103210), (4960, 82568), (7936, 51605), (9920, 41284), (10321, 39680), (19840, 20642)]