81851696

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{383}}^1$

素因数の和:466

約数の個数: 60

約数和(自身を含む): 172346112

約数和(自身を除く): 90494416

約数列:

[1, 2, 4, 8, 16, 19, 37, 38, 74, 76, 148, 152, 296, 304, 361, 383, 592, 703, 722, 766, 1406, 1444, 1532, 2812, 2888, 3064, 5624, 5776, 6128, 7277, 11248, 13357, 14171, 14554, 26714, 28342, 29108, 53428, 56684, 58216, 106856, 113368, 116432, 138263, 213712, 226736, 269249, 276526, 538498, 553052, 1076996, 1106104, 2153992, 2212208, 4307984, 5115731, 10231462, 20462924, 40925848, 81851696]

約数ペア:

[(1, 81851696), (2, 40925848), (4, 20462924), (8, 10231462), (16, 5115731), (19, 4307984), (37, 2212208), (38, 2153992), (74, 1106104), (76, 1076996), (148, 553052), (152, 538498), (296, 276526), (304, 269249), (361, 226736), (383, 213712), (592, 138263), (703, 116432), (722, 113368), (766, 106856), (1406, 58216), (1444, 56684), (1532, 53428), (2812, 29108), (2888, 28342), (3064, 26714), (5624, 14554), (5776, 14171), (6128, 13357), (7277, 11248)]