312733280

素因数分解:

$2^5\times 5^1\times {\mathrm{499}}^1\times {\mathrm{3917}}^1$

素因数の和:4431

約数の個数: 48

約数和(自身を含む): 740502000

約数和(自身を除く): 427768720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 499, 998, 1996, 2495, 3917, 3992, 4990, 7834, 7984, 9980, 15668, 15968, 19585, 19960, 31336, 39170, 39920, 62672, 78340, 79840, 125344, 156680, 313360, 626720, 1954583, 3909166, 7818332, 9772915, 15636664, 19545830, 31273328, 39091660, 62546656, 78183320, 156366640, 312733280]

約数ペア:

[(1, 312733280), (2, 156366640), (4, 78183320), (5, 62546656), (8, 39091660), (10, 31273328), (16, 19545830), (20, 15636664), (32, 9772915), (40, 7818332), (80, 3909166), (160, 1954583), (499, 626720), (998, 313360), (1996, 156680), (2495, 125344), (3917, 79840), (3992, 78340), (4990, 62672), (7834, 39920), (7984, 39170), (9980, 31336), (15668, 19960), (15968, 19585)]