2981290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:127

約数の個数: 64

約数和(自身を含む): 6531840

約数和(自身を除く): 3550550

約数列:

[1, 2, 5, 10, 13, 17, 19, 26, 34, 38, 65, 71, 85, 95, 130, 142, 170, 190, 221, 247, 323, 355, 442, 494, 646, 710, 923, 1105, 1207, 1235, 1349, 1615, 1846, 2210, 2414, 2470, 2698, 3230, 4199, 4615, 6035, 6745, 8398, 9230, 12070, 13490, 15691, 17537, 20995, 22933, 31382, 35074, 41990, 45866, 78455, 87685, 114665, 156910, 175370, 229330, 298129, 596258, 1490645, 2981290]

約数ペア:

[(1, 2981290), (2, 1490645), (5, 596258), (10, 298129), (13, 229330), (17, 175370), (19, 156910), (26, 114665), (34, 87685), (38, 78455), (65, 45866), (71, 41990), (85, 35074), (95, 31382), (130, 22933), (142, 20995), (170, 17537), (190, 15691), (221, 13490), (247, 12070), (323, 9230), (355, 8398), (442, 6745), (494, 6035), (646, 4615), (710, 4199), (923, 3230), (1105, 2698), (1207, 2470), (1235, 2414), (1349, 2210), (1615, 1846)]