20722406740

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{439}}^1\times {\mathrm{983}}^1$

素因数の和:1459

約数の個数: 120

約数和(自身を含む): 50934280320

約数和(自身を除く): 30211873580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 439, 490, 686, 878, 980, 983, 1372, 1715, 1756, 1966, 2195, 2401, 3073, 3430, 3932, 4390, 4802, 4915, 6146, 6860, 6881, 8780, 9604, 9830, 12005, 12292, 13762, 15365, 19660, 21511, 24010, 27524, 30730, 34405, 43022, 48020, 48167, 61460, 68810, 86044, 96334, 107555, 137620, 150577, 192668, 215110, 240835, 301154, 337169, 430220, 431537, 481670, 602308, 674338, 752885, 863074, 963340, 1054039, 1348676, 1505770, 1685845, 1726148, 2108078, 2157685, 2360183, 3011540, 3020759, 3371690, 4216156, 4315370, 4720366, 5270195, 6041518, 6743380, 8630740, 9440732, 10540390, 11800915, 12083036, 15103795, 21080780, 21145313, 23601830, 30207590, 42290626, 47203660, 60415180, 84581252, 105726565, 148017191, 211453130, 296034382, 422906260, 592068764, 740085955, 1036120337, 1480171910, 2072240674, 2960343820, 4144481348, 5180601685, 10361203370, 20722406740]

約数ペア:

[(1, 20722406740), (2, 10361203370), (4, 5180601685), (5, 4144481348), (7, 2960343820), (10, 2072240674), (14, 1480171910), (20, 1036120337), (28, 740085955), (35, 592068764), (49, 422906260), (70, 296034382), (98, 211453130), (140, 148017191), (196, 105726565), (245, 84581252), (343, 60415180), (439, 47203660), (490, 42290626), (686, 30207590), (878, 23601830), (980, 21145313), (983, 21080780), (1372, 15103795), (1715, 12083036), (1756, 11800915), (1966, 10540390), (2195, 9440732), (2401, 8630740), (3073, 6743380), (3430, 6041518), (3932, 5270195), (4390, 4720366), (4802, 4315370), (4915, 4216156), (6146, 3371690), (6860, 3020759), (6881, 3011540), (8780, 2360183), (9604, 2157685), (9830, 2108078), (12005, 1726148), (12292, 1685845), (13762, 1505770), (15365, 1348676), (19660, 1054039), (21511, 963340), (24010, 863074), (27524, 752885), (30730, 674338), (34405, 602308), (43022, 481670), (48020, 431537), (48167, 430220), (61460, 337169), (68810, 301154), (86044, 240835), (96334, 215110), (107555, 192668), (137620, 150577)]