400464025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{347}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 554589504

約数和(自身を除く): 154125479

約数列:

[1, 5, 13, 25, 53, 65, 67, 265, 325, 335, 347, 689, 871, 1325, 1675, 1735, 3445, 3551, 4355, 4511, 8675, 17225, 17755, 18391, 21775, 22555, 23249, 46163, 88775, 91955, 112775, 116245, 230815, 239083, 302237, 459775, 581225, 1154075, 1195415, 1232197, 1511185, 5977075, 6160985, 7555925, 16018561, 30804925, 80092805, 400464025]

約数ペア:

[(1, 400464025), (5, 80092805), (13, 30804925), (25, 16018561), (53, 7555925), (65, 6160985), (67, 5977075), (265, 1511185), (325, 1232197), (335, 1195415), (347, 1154075), (689, 581225), (871, 459775), (1325, 302237), (1675, 239083), (1735, 230815), (3445, 116245), (3551, 112775), (4355, 91955), (4511, 88775), (8675, 46163), (17225, 23249), (17755, 22555), (18391, 21775)]