2017990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1$

素因数の和:101

約数の個数: 48

約数和(自身を含む): 4224528

約数和(自身を除く): 2206538

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 43, 65, 86, 95, 130, 190, 215, 247, 361, 430, 494, 559, 722, 817, 1118, 1235, 1634, 1805, 2470, 2795, 3610, 4085, 4693, 5590, 8170, 9386, 10621, 15523, 21242, 23465, 31046, 46930, 53105, 77615, 106210, 155230, 201799, 403598, 1008995, 2017990]

約数ペア:

[(1, 2017990), (2, 1008995), (5, 403598), (10, 201799), (13, 155230), (19, 106210), (26, 77615), (38, 53105), (43, 46930), (65, 31046), (86, 23465), (95, 21242), (130, 15523), (190, 10621), (215, 9386), (247, 8170), (361, 5590), (430, 4693), (494, 4085), (559, 3610), (722, 2795), (817, 2470), (1118, 1805), (1235, 1634)]