81332238

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:361

約数の個数: 64

約数和(自身を含む): 180956160

約数和(自身を除く): 99623922

約数列:

[1, 2, 3, 6, 13, 26, 39, 67, 78, 79, 134, 158, 197, 201, 237, 394, 402, 474, 591, 871, 1027, 1182, 1742, 2054, 2561, 2613, 3081, 5122, 5226, 5293, 6162, 7683, 10586, 13199, 15366, 15563, 15879, 26398, 31126, 31758, 39597, 46689, 68809, 79194, 93378, 137618, 171587, 202319, 206427, 343174, 404638, 412854, 514761, 606957, 1029522, 1042721, 1213914, 2085442, 3128163, 6256326, 13555373, 27110746, 40666119, 81332238]

約数ペア:

[(1, 81332238), (2, 40666119), (3, 27110746), (6, 13555373), (13, 6256326), (26, 3128163), (39, 2085442), (67, 1213914), (78, 1042721), (79, 1029522), (134, 606957), (158, 514761), (197, 412854), (201, 404638), (237, 343174), (394, 206427), (402, 202319), (474, 171587), (591, 137618), (871, 93378), (1027, 79194), (1182, 68809), (1742, 46689), (2054, 39597), (2561, 31758), (2613, 31126), (3081, 26398), (5122, 15879), (5226, 15563), (5293, 15366), (6162, 13199), (7683, 10586)]