256948380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109807}}^1$

素因数の和:109835

約数の個数: 72

約数和(自身を含む): 839372352

約数和(自身を除く): 582423972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 109807, 219614, 329421, 439228, 549035, 658842, 988263, 1098070, 1317684, 1427491, 1647105, 1976526, 2196140, 2854982, 3294210, 3953052, 4282473, 4941315, 5709964, 6588420, 7137455, 8564946, 9882630, 12847419, 14274910, 17129892, 19765260, 21412365, 25694838, 28549820, 42824730, 51389676, 64237095, 85649460, 128474190, 256948380]

約数ペア:

[(1, 256948380), (2, 128474190), (3, 85649460), (4, 64237095), (5, 51389676), (6, 42824730), (9, 28549820), (10, 25694838), (12, 21412365), (13, 19765260), (15, 17129892), (18, 14274910), (20, 12847419), (26, 9882630), (30, 8564946), (36, 7137455), (39, 6588420), (45, 5709964), (52, 4941315), (60, 4282473), (65, 3953052), (78, 3294210), (90, 2854982), (117, 2196140), (130, 1976526), (156, 1647105), (180, 1427491), (195, 1317684), (234, 1098070), (260, 988263), (390, 658842), (468, 549035), (585, 439228), (780, 329421), (1170, 219614), (2340, 109807)]