198839680

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23899}}^1$

素因数の和:23931

約数の個数: 64

約数和(自身を含む): 511938000

約数和(自身を除く): 313098320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 23899, 47798, 95596, 119495, 191192, 238990, 310687, 382384, 477980, 621374, 764768, 955960, 1242748, 1529536, 1553435, 1911920, 2485496, 3059072, 3106870, 3823840, 4970992, 6213740, 7647680, 9941984, 12427480, 15295360, 19883968, 24854960, 39767936, 49709920, 99419840, 198839680]

約数ペア:

[(1, 198839680), (2, 99419840), (4, 49709920), (5, 39767936), (8, 24854960), (10, 19883968), (13, 15295360), (16, 12427480), (20, 9941984), (26, 7647680), (32, 6213740), (40, 4970992), (52, 3823840), (64, 3106870), (65, 3059072), (80, 2485496), (104, 1911920), (128, 1553435), (130, 1529536), (160, 1242748), (208, 955960), (260, 764768), (320, 621374), (416, 477980), (520, 382384), (640, 310687), (832, 238990), (1040, 191192), (1664, 119495), (2080, 95596), (4160, 47798), (8320, 23899)]