81957260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2801}}^1$

素因数の和:2847

約数の個数: 96

約数和(自身を含む): 225953280

約数和(自身を除く): 143996020

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 55, 70, 76, 77, 95, 110, 133, 140, 154, 190, 209, 220, 266, 308, 380, 385, 418, 532, 665, 770, 836, 1045, 1330, 1463, 1540, 2090, 2660, 2801, 2926, 4180, 5602, 5852, 7315, 11204, 14005, 14630, 19607, 28010, 29260, 30811, 39214, 53219, 56020, 61622, 78428, 98035, 106438, 123244, 154055, 196070, 212876, 215677, 266095, 308110, 372533, 392140, 431354, 532190, 585409, 616220, 745066, 862708, 1064380, 1078385, 1170818, 1490132, 1862665, 2156770, 2341636, 2927045, 3725330, 4097863, 4313540, 5854090, 7450660, 8195726, 11708180, 16391452, 20489315, 40978630, 81957260]

約数ペア:

[(1, 81957260), (2, 40978630), (4, 20489315), (5, 16391452), (7, 11708180), (10, 8195726), (11, 7450660), (14, 5854090), (19, 4313540), (20, 4097863), (22, 3725330), (28, 2927045), (35, 2341636), (38, 2156770), (44, 1862665), (55, 1490132), (70, 1170818), (76, 1078385), (77, 1064380), (95, 862708), (110, 745066), (133, 616220), (140, 585409), (154, 532190), (190, 431354), (209, 392140), (220, 372533), (266, 308110), (308, 266095), (380, 215677), (385, 212876), (418, 196070), (532, 154055), (665, 123244), (770, 106438), (836, 98035), (1045, 78428), (1330, 61622), (1463, 56020), (1540, 53219), (2090, 39214), (2660, 30811), (2801, 29260), (2926, 28010), (4180, 19607), (5602, 14630), (5852, 14005), (7315, 11204)]