1217374520

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{2221}}^1$

素因数の和:2496

約数の個数: 64

約数和(自身を含む): 2793320640

約数和(自身を除く): 1575946120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 193, 284, 355, 386, 568, 710, 772, 965, 1420, 1544, 1930, 2221, 2840, 3860, 4442, 7720, 8884, 11105, 13703, 17768, 22210, 27406, 44420, 54812, 68515, 88840, 109624, 137030, 157691, 274060, 315382, 428653, 548120, 630764, 788455, 857306, 1261528, 1576910, 1714612, 2143265, 3153820, 3429224, 4286530, 6307640, 8573060, 17146120, 30434363, 60868726, 121737452, 152171815, 243474904, 304343630, 608687260, 1217374520]

約数ペア:

[(1, 1217374520), (2, 608687260), (4, 304343630), (5, 243474904), (8, 152171815), (10, 121737452), (20, 60868726), (40, 30434363), (71, 17146120), (142, 8573060), (193, 6307640), (284, 4286530), (355, 3429224), (386, 3153820), (568, 2143265), (710, 1714612), (772, 1576910), (965, 1261528), (1420, 857306), (1544, 788455), (1930, 630764), (2221, 548120), (2840, 428653), (3860, 315382), (4442, 274060), (7720, 157691), (8884, 137030), (11105, 109624), (13703, 88840), (17768, 68515), (22210, 54812), (27406, 44420)]