155426560

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3917}}^1$

素因数の和:3969

約数の個数: 72

約数和(自身を含む): 384402816

約数和(自身を除く): 228976256

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, 3917, 3968, 4960, 7834, 7936, 9920, 15668, 19585, 19840, 31336, 39170, 39680, 62672, 78340, 121427, 125344, 156680, 242854, 250688, 313360, 485708, 501376, 607135, 626720, 971416, 1002752, 1214270, 1253440, 1942832, 2428540, 2506880, 3885664, 4857080, 5013760, 7771328, 9714160, 15542656, 19428320, 31085312, 38856640, 77713280, 155426560]

約数ペア:

[(1, 155426560), (2, 77713280), (4, 38856640), (5, 31085312), (8, 19428320), (10, 15542656), (16, 9714160), (20, 7771328), (31, 5013760), (32, 4857080), (40, 3885664), (62, 2506880), (64, 2428540), (80, 1942832), (124, 1253440), (128, 1214270), (155, 1002752), (160, 971416), (248, 626720), (256, 607135), (310, 501376), (320, 485708), (496, 313360), (620, 250688), (640, 242854), (992, 156680), (1240, 125344), (1280, 121427), (1984, 78340), (2480, 62672), (3917, 39680), (3968, 39170), (4960, 31336), (7834, 19840), (7936, 19585), (9920, 15668)]