20451091440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6554837}}^1$

素因数の和:6554866

約数の個数: 80

約数和(自身を含む): 68275192608

約数和(自身を除く): 47824101168

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6554837, 13109674, 19664511, 26219348, 32774185, 39329022, 52438696, 65548370, 78658044, 85212881, 98322555, 104877392, 131096740, 157316088, 170425762, 196645110, 255638643, 262193480, 314632176, 340851524, 393290220, 426064405, 511277286, 524386960, 681703048, 786580440, 852128810, 1022554572, 1278193215, 1363406096, 1573160880, 1704257620, 2045109144, 2556386430, 3408515240, 4090218288, 5112772860, 6817030480, 10225545720, 20451091440]

約数ペア:

[(1, 20451091440), (2, 10225545720), (3, 6817030480), (4, 5112772860), (5, 4090218288), (6, 3408515240), (8, 2556386430), (10, 2045109144), (12, 1704257620), (13, 1573160880), (15, 1363406096), (16, 1278193215), (20, 1022554572), (24, 852128810), (26, 786580440), (30, 681703048), (39, 524386960), (40, 511277286), (48, 426064405), (52, 393290220), (60, 340851524), (65, 314632176), (78, 262193480), (80, 255638643), (104, 196645110), (120, 170425762), (130, 157316088), (156, 131096740), (195, 104877392), (208, 98322555), (240, 85212881), (260, 78658044), (312, 65548370), (390, 52438696), (520, 39329022), (624, 32774185), (780, 26219348), (1040, 19664511), (1560, 13109674), (3120, 6554837)]