81946020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3389}}^1$

素因数の和:3445

約数の個数: 96

約数和(自身を含む): 255144960

約数和(自身を除く): 173198940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 62, 65, 78, 93, 124, 130, 155, 156, 186, 195, 260, 310, 372, 390, 403, 465, 620, 780, 806, 930, 1209, 1612, 1860, 2015, 2418, 3389, 4030, 4836, 6045, 6778, 8060, 10167, 12090, 13556, 16945, 20334, 24180, 33890, 40668, 44057, 50835, 67780, 88114, 101670, 105059, 132171, 176228, 203340, 210118, 220285, 264342, 315177, 420236, 440570, 525295, 528684, 630354, 660855, 881140, 1050590, 1260708, 1321710, 1365767, 1575885, 2101180, 2643420, 2731534, 3151770, 4097301, 5463068, 6303540, 6828835, 8194602, 13657670, 16389204, 20486505, 27315340, 40973010, 81946020]

約数ペア:

[(1, 81946020), (2, 40973010), (3, 27315340), (4, 20486505), (5, 16389204), (6, 13657670), (10, 8194602), (12, 6828835), (13, 6303540), (15, 5463068), (20, 4097301), (26, 3151770), (30, 2731534), (31, 2643420), (39, 2101180), (52, 1575885), (60, 1365767), (62, 1321710), (65, 1260708), (78, 1050590), (93, 881140), (124, 660855), (130, 630354), (155, 528684), (156, 525295), (186, 440570), (195, 420236), (260, 315177), (310, 264342), (372, 220285), (390, 210118), (403, 203340), (465, 176228), (620, 132171), (780, 105059), (806, 101670), (930, 88114), (1209, 67780), (1612, 50835), (1860, 44057), (2015, 40668), (2418, 33890), (3389, 24180), (4030, 20334), (4836, 16945), (6045, 13556), (6778, 12090), (8060, 10167)]