261404331123

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{797}}^1\times {\mathrm{6899}}^1$

素因数の和:7788

約数の個数: 64

約数和(自身を含む): 399617971200

約数和(自身を除く): 138213640077

約数列:

[1, 3, 13, 23, 39, 53, 69, 159, 299, 689, 797, 897, 1219, 2067, 2391, 3657, 6899, 10361, 15847, 18331, 20697, 31083, 42241, 47541, 54993, 89687, 126723, 158677, 238303, 269061, 365647, 476031, 549133, 714909, 971543, 1096941, 1647399, 2062801, 2914629, 4753411, 5498503, 6188403, 8409881, 12630059, 14260233, 16495509, 25229643, 37890177, 71480539, 109328453, 126465569, 214441617, 291420659, 327985359, 379396707, 874261977, 1644052397, 3788468567, 4932157191, 6702675157, 11365405701, 20108025471, 87134777041, 261404331123]

約数ペア:

[(1, 261404331123), (3, 87134777041), (13, 20108025471), (23, 11365405701), (39, 6702675157), (53, 4932157191), (69, 3788468567), (159, 1644052397), (299, 874261977), (689, 379396707), (797, 327985359), (897, 291420659), (1219, 214441617), (2067, 126465569), (2391, 109328453), (3657, 71480539), (6899, 37890177), (10361, 25229643), (15847, 16495509), (18331, 14260233), (20697, 12630059), (31083, 8409881), (42241, 6188403), (47541, 5498503), (54993, 4753411), (89687, 2914629), (126723, 2062801), (158677, 1647399), (238303, 1096941), (269061, 971543), (365647, 714909), (476031, 549133)]