81187036

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 176046080

約数和(自身を除く): 94859044

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 79, 119, 127, 158, 238, 254, 289, 316, 476, 508, 553, 578, 889, 1106, 1156, 1343, 1778, 2023, 2159, 2212, 2686, 3556, 4046, 4318, 5372, 8092, 8636, 9401, 10033, 15113, 18802, 20066, 22831, 30226, 36703, 37604, 40132, 45662, 60452, 70231, 73406, 91324, 140462, 146812, 159817, 170561, 256921, 280924, 319634, 341122, 513842, 639268, 682244, 1027684, 1193927, 2387854, 2899537, 4775708, 5799074, 11598148, 20296759, 40593518, 81187036]

約数ペア:

[(1, 81187036), (2, 40593518), (4, 20296759), (7, 11598148), (14, 5799074), (17, 4775708), (28, 2899537), (34, 2387854), (68, 1193927), (79, 1027684), (119, 682244), (127, 639268), (158, 513842), (238, 341122), (254, 319634), (289, 280924), (316, 256921), (476, 170561), (508, 159817), (553, 146812), (578, 140462), (889, 91324), (1106, 73406), (1156, 70231), (1343, 60452), (1778, 45662), (2023, 40132), (2159, 37604), (2212, 36703), (2686, 30226), (3556, 22831), (4046, 20066), (4318, 18802), (5372, 15113), (8092, 10033), (8636, 9401)]