61981040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{337}}^1$

素因数の和:391

約数の個数: 120

約数和(自身を含む): 167228880

約数和(自身を除く): 105247840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 121, 152, 176, 190, 209, 220, 242, 304, 337, 380, 418, 440, 484, 605, 674, 760, 836, 880, 968, 1045, 1210, 1348, 1520, 1672, 1685, 1936, 2090, 2299, 2420, 2696, 3344, 3370, 3707, 4180, 4598, 4840, 5392, 6403, 6740, 7414, 8360, 9196, 9680, 11495, 12806, 13480, 14828, 16720, 18392, 18535, 22990, 25612, 26960, 29656, 32015, 36784, 37070, 40777, 45980, 51224, 59312, 64030, 70433, 74140, 81554, 91960, 102448, 128060, 140866, 148280, 163108, 183920, 203885, 256120, 281732, 296560, 326216, 352165, 407770, 512240, 563464, 652432, 704330, 774763, 815540, 1126928, 1408660, 1549526, 1631080, 2817320, 3099052, 3262160, 3873815, 5634640, 6198104, 7747630, 12396208, 15495260, 30990520, 61981040]

約数ペア:

[(1, 61981040), (2, 30990520), (4, 15495260), (5, 12396208), (8, 7747630), (10, 6198104), (11, 5634640), (16, 3873815), (19, 3262160), (20, 3099052), (22, 2817320), (38, 1631080), (40, 1549526), (44, 1408660), (55, 1126928), (76, 815540), (80, 774763), (88, 704330), (95, 652432), (110, 563464), (121, 512240), (152, 407770), (176, 352165), (190, 326216), (209, 296560), (220, 281732), (242, 256120), (304, 203885), (337, 183920), (380, 163108), (418, 148280), (440, 140866), (484, 128060), (605, 102448), (674, 91960), (760, 81554), (836, 74140), (880, 70433), (968, 64030), (1045, 59312), (1210, 51224), (1348, 45980), (1520, 40777), (1672, 37070), (1685, 36784), (1936, 32015), (2090, 29656), (2299, 26960), (2420, 25612), (2696, 22990), (3344, 18535), (3370, 18392), (3707, 16720), (4180, 14828), (4598, 13480), (4840, 12806), (5392, 11495), (6403, 9680), (6740, 9196), (7414, 8360)]