20803750480

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{449}}^1\times {\mathrm{5623}}^1$

素因数の和:6188

約数の個数: 80

約数和(自身を含む): 48955795200

約数和(自身を除く): 28152044720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 449, 515, 824, 898, 1030, 1648, 1796, 2060, 2245, 3592, 4120, 4490, 5623, 7184, 8240, 8980, 11246, 17960, 22492, 28115, 35920, 44984, 46247, 56230, 89968, 92494, 112460, 184988, 224920, 231235, 369976, 449840, 462470, 579169, 739952, 924940, 1158338, 1849880, 2316676, 2524727, 2895845, 3699760, 4633352, 5049454, 5791690, 9266704, 10098908, 11583380, 12623635, 20197816, 23166760, 25247270, 40395632, 46333520, 50494540, 100989080, 201978160, 260046881, 520093762, 1040187524, 1300234405, 2080375048, 2600468810, 4160750096, 5200937620, 10401875240, 20803750480]

約数ペア:

[(1, 20803750480), (2, 10401875240), (4, 5200937620), (5, 4160750096), (8, 2600468810), (10, 2080375048), (16, 1300234405), (20, 1040187524), (40, 520093762), (80, 260046881), (103, 201978160), (206, 100989080), (412, 50494540), (449, 46333520), (515, 40395632), (824, 25247270), (898, 23166760), (1030, 20197816), (1648, 12623635), (1796, 11583380), (2060, 10098908), (2245, 9266704), (3592, 5791690), (4120, 5049454), (4490, 4633352), (5623, 3699760), (7184, 2895845), (8240, 2524727), (8980, 2316676), (11246, 1849880), (17960, 1158338), (22492, 924940), (28115, 739952), (35920, 579169), (44984, 462470), (46247, 449840), (56230, 369976), (89968, 231235), (92494, 224920), (112460, 184988)]