81278330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{11273}}^1$

素因数の和:11390

約数の個数: 32

約数和(自身を含む): 168839424

約数和(自身を除く): 87561094

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 103, 206, 515, 721, 1030, 1442, 3605, 7210, 11273, 22546, 56365, 78911, 112730, 157822, 394555, 789110, 1161119, 2322238, 5805595, 8127833, 11611190, 16255666, 40639165, 81278330]

約数ペア:

[(1, 81278330), (2, 40639165), (5, 16255666), (7, 11611190), (10, 8127833), (14, 5805595), (35, 2322238), (70, 1161119), (103, 789110), (206, 394555), (515, 157822), (721, 112730), (1030, 78911), (1442, 56365), (3605, 22546), (7210, 11273)]