18509920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{809}}^1$

素因数の和:848

約数の個数: 96

約数和(自身を含む): 51438240

約数和(自身を除く): 32928320

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 160, 176, 208, 220, 260, 286, 352, 416, 440, 520, 572, 715, 809, 880, 1040, 1144, 1430, 1618, 1760, 2080, 2288, 2860, 3236, 4045, 4576, 5720, 6472, 8090, 8899, 10517, 11440, 12944, 16180, 17798, 21034, 22880, 25888, 32360, 35596, 42068, 44495, 52585, 64720, 71192, 84136, 88990, 105170, 115687, 129440, 142384, 168272, 177980, 210340, 231374, 284768, 336544, 355960, 420680, 462748, 578435, 711920, 841360, 925496, 1156870, 1423840, 1682720, 1850992, 2313740, 3701984, 4627480, 9254960, 18509920]

約数ペア:

[(1, 18509920), (2, 9254960), (4, 4627480), (5, 3701984), (8, 2313740), (10, 1850992), (11, 1682720), (13, 1423840), (16, 1156870), (20, 925496), (22, 841360), (26, 711920), (32, 578435), (40, 462748), (44, 420680), (52, 355960), (55, 336544), (65, 284768), (80, 231374), (88, 210340), (104, 177980), (110, 168272), (130, 142384), (143, 129440), (160, 115687), (176, 105170), (208, 88990), (220, 84136), (260, 71192), (286, 64720), (352, 52585), (416, 44495), (440, 42068), (520, 35596), (572, 32360), (715, 25888), (809, 22880), (880, 21034), (1040, 17798), (1144, 16180), (1430, 12944), (1618, 11440), (1760, 10517), (2080, 8899), (2288, 8090), (2860, 6472), (3236, 5720), (4045, 4576)]