79747980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{102241}}^1$

素因数の和:102266

約数の個数: 48

約数和(自身を含む): 240473184

約数和(自身を除く): 160725204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 102241, 204482, 306723, 408964, 511205, 613446, 1022410, 1226892, 1329133, 1533615, 2044820, 2658266, 3067230, 3987399, 5316532, 6134460, 6645665, 7974798, 13291330, 15949596, 19936995, 26582660, 39873990, 79747980]

約数ペア:

[(1, 79747980), (2, 39873990), (3, 26582660), (4, 19936995), (5, 15949596), (6, 13291330), (10, 7974798), (12, 6645665), (13, 6134460), (15, 5316532), (20, 3987399), (26, 3067230), (30, 2658266), (39, 2044820), (52, 1533615), (60, 1329133), (65, 1226892), (78, 1022410), (130, 613446), (156, 511205), (195, 408964), (260, 306723), (390, 204482), (780, 102241)]