12879880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:119

約数の個数: 128

約数和(自身を含む): 34836480

約数和(自身を除く): 21956600

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 31, 34, 40, 47, 52, 62, 65, 68, 85, 94, 104, 124, 130, 136, 155, 170, 188, 221, 235, 248, 260, 310, 340, 376, 403, 442, 470, 520, 527, 611, 620, 680, 799, 806, 884, 940, 1054, 1105, 1222, 1240, 1457, 1598, 1612, 1768, 1880, 2015, 2108, 2210, 2444, 2635, 2914, 3055, 3196, 3224, 3995, 4030, 4216, 4420, 4888, 5270, 5828, 6110, 6392, 6851, 7285, 7990, 8060, 8840, 10387, 10540, 11656, 12220, 13702, 14570, 15980, 16120, 18941, 20774, 21080, 24440, 24769, 27404, 29140, 31960, 34255, 37882, 41548, 49538, 51935, 54808, 58280, 68510, 75764, 83096, 94705, 99076, 103870, 123845, 137020, 151528, 189410, 198152, 207740, 247690, 274040, 321997, 378820, 415480, 495380, 643994, 757640, 990760, 1287988, 1609985, 2575976, 3219970, 6439940, 12879880]

約数ペア:

[(1, 12879880), (2, 6439940), (4, 3219970), (5, 2575976), (8, 1609985), (10, 1287988), (13, 990760), (17, 757640), (20, 643994), (26, 495380), (31, 415480), (34, 378820), (40, 321997), (47, 274040), (52, 247690), (62, 207740), (65, 198152), (68, 189410), (85, 151528), (94, 137020), (104, 123845), (124, 103870), (130, 99076), (136, 94705), (155, 83096), (170, 75764), (188, 68510), (221, 58280), (235, 54808), (248, 51935), (260, 49538), (310, 41548), (340, 37882), (376, 34255), (403, 31960), (442, 29140), (470, 27404), (520, 24769), (527, 24440), (611, 21080), (620, 20774), (680, 18941), (799, 16120), (806, 15980), (884, 14570), (940, 13702), (1054, 12220), (1105, 11656), (1222, 10540), (1240, 10387), (1457, 8840), (1598, 8060), (1612, 7990), (1768, 7285), (1880, 6851), (2015, 6392), (2108, 6110), (2210, 5828), (2444, 5270), (2635, 4888), (2914, 4420), (3055, 4216), (3196, 4030), (3224, 3995)]