15722516420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{155453}}^1$

素因数の和:155864

約数の個数: 48

約数和(自身を含む): 35648711280

約数和(自身を除く): 19926194860

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, 155453, 310906, 621812, 777265, 1554530, 2020889, 3109060, 4041778, 8083556, 10104445, 20208890, 40417780, 60471217, 120942434, 241884868, 302356085, 604712170, 786125821, 1209424340, 1572251642, 3144503284, 3930629105, 7861258210, 15722516420]

約数ペア:

[(1, 15722516420), (2, 7861258210), (4, 3930629105), (5, 3144503284), (10, 1572251642), (13, 1209424340), (20, 786125821), (26, 604712170), (52, 302356085), (65, 241884868), (130, 120942434), (260, 60471217), (389, 40417780), (778, 20208890), (1556, 10104445), (1945, 8083556), (3890, 4041778), (5057, 3109060), (7780, 2020889), (10114, 1554530), (20228, 777265), (25285, 621812), (50570, 310906), (101140, 155453)]