20391528

素因数分解:

$2^3\times 3^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 52640640

約数和(自身を除く): 32249112

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 73, 103, 113, 146, 206, 219, 226, 292, 309, 339, 412, 438, 452, 584, 618, 678, 824, 876, 904, 1236, 1356, 1752, 2472, 2712, 7519, 8249, 11639, 15038, 16498, 22557, 23278, 24747, 30076, 32996, 34917, 45114, 46556, 49494, 60152, 65992, 69834, 90228, 93112, 98988, 139668, 180456, 197976, 279336, 849647, 1699294, 2548941, 3398588, 5097882, 6797176, 10195764, 20391528]

約数ペア:

[(1, 20391528), (2, 10195764), (3, 6797176), (4, 5097882), (6, 3398588), (8, 2548941), (12, 1699294), (24, 849647), (73, 279336), (103, 197976), (113, 180456), (146, 139668), (206, 98988), (219, 93112), (226, 90228), (292, 69834), (309, 65992), (339, 60152), (412, 49494), (438, 46556), (452, 45114), (584, 34917), (618, 32996), (678, 30076), (824, 24747), (876, 23278), (904, 22557), (1236, 16498), (1356, 15038), (1752, 11639), (2472, 8249), (2712, 7519)]