81498660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{809}}^1$

素因数の和:917

約数の個数: 96

約数和(自身を含む): 241678080

約数和(自身を除く): 160179420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 73, 92, 115, 138, 146, 219, 230, 276, 292, 345, 365, 438, 460, 690, 730, 809, 876, 1095, 1380, 1460, 1618, 1679, 2190, 2427, 3236, 3358, 4045, 4380, 4854, 5037, 6716, 8090, 8395, 9708, 10074, 12135, 16180, 16790, 18607, 20148, 24270, 25185, 33580, 37214, 48540, 50370, 55821, 59057, 74428, 93035, 100740, 111642, 118114, 177171, 186070, 223284, 236228, 279105, 295285, 354342, 372140, 558210, 590570, 708684, 885855, 1116420, 1181140, 1358311, 1771710, 2716622, 3543420, 4074933, 5433244, 6791555, 8149866, 13583110, 16299732, 20374665, 27166220, 40749330, 81498660]

約数ペア:

[(1, 81498660), (2, 40749330), (3, 27166220), (4, 20374665), (5, 16299732), (6, 13583110), (10, 8149866), (12, 6791555), (15, 5433244), (20, 4074933), (23, 3543420), (30, 2716622), (46, 1771710), (60, 1358311), (69, 1181140), (73, 1116420), (92, 885855), (115, 708684), (138, 590570), (146, 558210), (219, 372140), (230, 354342), (276, 295285), (292, 279105), (345, 236228), (365, 223284), (438, 186070), (460, 177171), (690, 118114), (730, 111642), (809, 100740), (876, 93035), (1095, 74428), (1380, 59057), (1460, 55821), (1618, 50370), (1679, 48540), (2190, 37214), (2427, 33580), (3236, 25185), (3358, 24270), (4045, 20148), (4380, 18607), (4854, 16790), (5037, 16180), (6716, 12135), (8090, 10074), (8395, 9708)]