20121016380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{433}}^1\times {\mathrm{4933}}^1$

素因数の和:5535

約数の個数: 96

約数和(自身を含む): 56840153664

約数和(自身を除く): 36719137284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 433, 471, 628, 785, 866, 942, 1299, 1570, 1732, 1884, 2165, 2355, 2598, 3140, 4330, 4710, 4933, 5196, 6495, 8660, 9420, 9866, 12990, 14799, 19732, 24665, 25980, 29598, 49330, 59196, 67981, 73995, 98660, 135962, 147990, 203943, 271924, 295980, 339905, 407886, 679810, 774481, 815772, 1019715, 1359620, 1548962, 2039430, 2135989, 2323443, 3097924, 3872405, 4078860, 4271978, 4646886, 6407967, 7744810, 8543956, 9293772, 10679945, 11617215, 12815934, 15489620, 21359890, 23234430, 25631868, 32039835, 42719780, 46468860, 64079670, 128159340, 335350273, 670700546, 1006050819, 1341401092, 1676751365, 2012101638, 3353502730, 4024203276, 5030254095, 6707005460, 10060508190, 20121016380]

約数ペア:

[(1, 20121016380), (2, 10060508190), (3, 6707005460), (4, 5030254095), (5, 4024203276), (6, 3353502730), (10, 2012101638), (12, 1676751365), (15, 1341401092), (20, 1006050819), (30, 670700546), (60, 335350273), (157, 128159340), (314, 64079670), (433, 46468860), (471, 42719780), (628, 32039835), (785, 25631868), (866, 23234430), (942, 21359890), (1299, 15489620), (1570, 12815934), (1732, 11617215), (1884, 10679945), (2165, 9293772), (2355, 8543956), (2598, 7744810), (3140, 6407967), (4330, 4646886), (4710, 4271978), (4933, 4078860), (5196, 3872405), (6495, 3097924), (8660, 2323443), (9420, 2135989), (9866, 2039430), (12990, 1548962), (14799, 1359620), (19732, 1019715), (24665, 815772), (25980, 774481), (29598, 679810), (49330, 407886), (59196, 339905), (67981, 295980), (73995, 271924), (98660, 203943), (135962, 147990)]