13881566140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{137251}}^1$

素因数の和:137662

約数の個数: 48

約数和(自身を含む): 31474628640

約数和(自身を除く): 17593062500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 389, 778, 1556, 1945, 3890, 5057, 7780, 10114, 20228, 25285, 50570, 101140, 137251, 274502, 549004, 686255, 1372510, 1784263, 2745020, 3568526, 7137052, 8921315, 17842630, 35685260, 53390639, 106781278, 213562556, 266953195, 533906390, 694078307, 1067812780, 1388156614, 2776313228, 3470391535, 6940783070, 13881566140]

約数ペア:

[(1, 13881566140), (2, 6940783070), (4, 3470391535), (5, 2776313228), (10, 1388156614), (13, 1067812780), (20, 694078307), (26, 533906390), (52, 266953195), (65, 213562556), (130, 106781278), (260, 53390639), (389, 35685260), (778, 17842630), (1556, 8921315), (1945, 7137052), (3890, 3568526), (5057, 2745020), (7780, 1784263), (10114, 1372510), (20228, 686255), (25285, 549004), (50570, 274502), (101140, 137251)]