278380828

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{7879}}^1$

素因数の和:7978

約数の個数: 36

約数和(自身を含む): 542884720

約数和(自身を除く): 264503892

約数列:

[1, 2, 4, 11, 22, 44, 73, 121, 146, 242, 292, 484, 803, 1606, 3212, 7879, 8833, 15758, 17666, 31516, 35332, 86669, 173338, 346676, 575167, 953359, 1150334, 1906718, 2300668, 3813436, 6326837, 12653674, 25307348, 69595207, 139190414, 278380828]

約数ペア:

[(1, 278380828), (2, 139190414), (4, 69595207), (11, 25307348), (22, 12653674), (44, 6326837), (73, 3813436), (121, 2300668), (146, 1906718), (242, 1150334), (292, 953359), (484, 575167), (803, 346676), (1606, 173338), (3212, 86669), (7879, 35332), (8833, 31516), (15758, 17666)]