1916980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 4438224

約数和(自身を除く): 2521244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 101, 130, 146, 202, 260, 292, 365, 404, 505, 730, 949, 1010, 1313, 1460, 1898, 2020, 2626, 3796, 4745, 5252, 6565, 7373, 9490, 13130, 14746, 18980, 26260, 29492, 36865, 73730, 95849, 147460, 191698, 383396, 479245, 958490, 1916980]

約数ペア:

[(1, 1916980), (2, 958490), (4, 479245), (5, 383396), (10, 191698), (13, 147460), (20, 95849), (26, 73730), (52, 36865), (65, 29492), (73, 26260), (101, 18980), (130, 14746), (146, 13130), (202, 9490), (260, 7373), (292, 6565), (365, 5252), (404, 4745), (505, 3796), (730, 2626), (949, 2020), (1010, 1898), (1313, 1460)]