1655720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:146

約数の個数: 64

約数和(自身を含む): 4199040

約数和(自身を除く): 2543320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 71, 88, 106, 110, 142, 212, 220, 265, 284, 355, 424, 440, 530, 568, 583, 710, 781, 1060, 1166, 1420, 1562, 2120, 2332, 2840, 2915, 3124, 3763, 3905, 4664, 5830, 6248, 7526, 7810, 11660, 15052, 15620, 18815, 23320, 30104, 31240, 37630, 41393, 75260, 82786, 150520, 165572, 206965, 331144, 413930, 827860, 1655720]

約数ペア:

[(1, 1655720), (2, 827860), (4, 413930), (5, 331144), (8, 206965), (10, 165572), (11, 150520), (20, 82786), (22, 75260), (40, 41393), (44, 37630), (53, 31240), (55, 30104), (71, 23320), (88, 18815), (106, 15620), (110, 15052), (142, 11660), (212, 7810), (220, 7526), (265, 6248), (284, 5830), (355, 4664), (424, 3905), (440, 3763), (530, 3124), (568, 2915), (583, 2840), (710, 2332), (781, 2120), (1060, 1562), (1166, 1420)]