1978457390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{859}}^1\times {\mathrm{2531}}^1$

素因数の和:3417

約数の個数: 64

約数和(自身を含む): 4389880320

約数和(自身を除く): 2411422930

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 859, 910, 1718, 2531, 4295, 5062, 6013, 8590, 11167, 12026, 12655, 17717, 22334, 25310, 30065, 32903, 35434, 55835, 60130, 65806, 78169, 88585, 111670, 156338, 164515, 177170, 230321, 329030, 390845, 460642, 781690, 1151605, 2174129, 2303210, 4348258, 10870645, 15218903, 21741290, 28263677, 30437806, 56527354, 76094515, 141318385, 152189030, 197845739, 282636770, 395691478, 989228695, 1978457390]

約数ペア:

[(1, 1978457390), (2, 989228695), (5, 395691478), (7, 282636770), (10, 197845739), (13, 152189030), (14, 141318385), (26, 76094515), (35, 56527354), (65, 30437806), (70, 28263677), (91, 21741290), (130, 15218903), (182, 10870645), (455, 4348258), (859, 2303210), (910, 2174129), (1718, 1151605), (2531, 781690), (4295, 460642), (5062, 390845), (6013, 329030), (8590, 230321), (11167, 177170), (12026, 164515), (12655, 156338), (17717, 111670), (22334, 88585), (25310, 78169), (30065, 65806), (32903, 60130), (35434, 55835)]