18166980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23291}}^1$

素因数の和:23316

約数の個数: 48

約数和(自身を含む): 54782784

約数和(自身を除く): 36615804

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, 23291, 46582, 69873, 93164, 116455, 139746, 232910, 279492, 302783, 349365, 465820, 605566, 698730, 908349, 1211132, 1397460, 1513915, 1816698, 3027830, 3633396, 4541745, 6055660, 9083490, 18166980]

約数ペア:

[(1, 18166980), (2, 9083490), (3, 6055660), (4, 4541745), (5, 3633396), (6, 3027830), (10, 1816698), (12, 1513915), (13, 1397460), (15, 1211132), (20, 908349), (26, 698730), (30, 605566), (39, 465820), (52, 349365), (60, 302783), (65, 279492), (78, 232910), (130, 139746), (156, 116455), (195, 93164), (260, 69873), (390, 46582), (780, 23291)]