77713280

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3917}}^1$

素因数の和:3967

約数の個数: 64

約数和(自身を含む): 191825280

約数和(自身を除く): 114112000

約数列:

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

約数ペア:

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