1258777780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{44417}}^1$

素因数の和:44548

約数の個数: 48

約数和(自身を含む): 2872956240

約数和(自身を除く): 1614178460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1417, 2180, 2834, 5668, 7085, 14170, 28340, 44417, 88834, 177668, 222085, 444170, 577421, 888340, 1154842, 2309684, 2887105, 4841453, 5774210, 9682906, 11548420, 19365812, 24207265, 48414530, 62938889, 96829060, 125877778, 251755556, 314694445, 629388890, 1258777780]

約数ペア:

[(1, 1258777780), (2, 629388890), (4, 314694445), (5, 251755556), (10, 125877778), (13, 96829060), (20, 62938889), (26, 48414530), (52, 24207265), (65, 19365812), (109, 11548420), (130, 9682906), (218, 5774210), (260, 4841453), (436, 2887105), (545, 2309684), (1090, 1154842), (1417, 888340), (2180, 577421), (2834, 444170), (5668, 222085), (7085, 177668), (14170, 88834), (28340, 44417)]