15800540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{701}}^1$

素因数の和:747

約数の個数: 72

約数和(自身を含む): 40334112

約数和(自身を除く): 24533572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 701, 805, 980, 1127, 1402, 1610, 2254, 2804, 3220, 3505, 4508, 4907, 5635, 7010, 9814, 11270, 14020, 16123, 19628, 22540, 24535, 32246, 34349, 49070, 64492, 68698, 80615, 98140, 112861, 137396, 161230, 171745, 225722, 322460, 343490, 451444, 564305, 686980, 790027, 1128610, 1580054, 2257220, 3160108, 3950135, 7900270, 15800540]

約数ペア:

[(1, 15800540), (2, 7900270), (4, 3950135), (5, 3160108), (7, 2257220), (10, 1580054), (14, 1128610), (20, 790027), (23, 686980), (28, 564305), (35, 451444), (46, 343490), (49, 322460), (70, 225722), (92, 171745), (98, 161230), (115, 137396), (140, 112861), (161, 98140), (196, 80615), (230, 68698), (245, 64492), (322, 49070), (460, 34349), (490, 32246), (644, 24535), (701, 22540), (805, 19628), (980, 16123), (1127, 14020), (1402, 11270), (1610, 9814), (2254, 7010), (2804, 5635), (3220, 4907), (3505, 4508)]