20178812059

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1\times {\mathrm{653}}^1$

素因数の和:956

約数の個数: 48

約数和(自身を含む): 24429913632

約数和(自身を除く): 4251101573

約数列:

[1, 7, 49, 53, 73, 163, 371, 511, 653, 1141, 2597, 3577, 3869, 4571, 7987, 8639, 11899, 27083, 31997, 34609, 47669, 60473, 83293, 106439, 189581, 242263, 333683, 423311, 583051, 630647, 745073, 1695841, 2335781, 2526457, 4414529, 5215511, 5641267, 7770047, 17685199, 30901703, 39488869, 54390329, 123796393, 276422083, 380732303, 411812491, 2882687437, 20178812059]

約数ペア:

[(1, 20178812059), (7, 2882687437), (49, 411812491), (53, 380732303), (73, 276422083), (163, 123796393), (371, 54390329), (511, 39488869), (653, 30901703), (1141, 17685199), (2597, 7770047), (3577, 5641267), (3869, 5215511), (4571, 4414529), (7987, 2526457), (8639, 2335781), (11899, 1695841), (27083, 745073), (31997, 630647), (34609, 583051), (47669, 423311), (60473, 333683), (83293, 242263), (106439, 189581)]