17978870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{859}}^1$

素因数の和:909

約数の個数: 64

約数和(自身を含む): 41610240

約数和(自身を除く): 23631370

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 26, 35, 46, 65, 70, 91, 115, 130, 161, 182, 230, 299, 322, 455, 598, 805, 859, 910, 1495, 1610, 1718, 2093, 2990, 4186, 4295, 6013, 8590, 10465, 11167, 12026, 19757, 20930, 22334, 30065, 39514, 55835, 60130, 78169, 98785, 111670, 138299, 156338, 197570, 256841, 276598, 390845, 513682, 691495, 781690, 1284205, 1382990, 1797887, 2568410, 3595774, 8989435, 17978870]

約数ペア:

[(1, 17978870), (2, 8989435), (5, 3595774), (7, 2568410), (10, 1797887), (13, 1382990), (14, 1284205), (23, 781690), (26, 691495), (35, 513682), (46, 390845), (65, 276598), (70, 256841), (91, 197570), (115, 156338), (130, 138299), (161, 111670), (182, 98785), (230, 78169), (299, 60130), (322, 55835), (455, 39514), (598, 30065), (805, 22334), (859, 20930), (910, 19757), (1495, 12026), (1610, 11167), (1718, 10465), (2093, 8590), (2990, 6013), (4186, 4295)]