1661812840

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1\times {\mathrm{3361}}^1$

素因数の和:3682

約数の個数: 64

約数和(自身を含む): 3834293760

約数和(自身を除く): 2172480920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 263, 376, 470, 526, 940, 1052, 1315, 1880, 2104, 2630, 3361, 5260, 6722, 10520, 12361, 13444, 16805, 24722, 26888, 33610, 49444, 61805, 67220, 98888, 123610, 134440, 157967, 247220, 315934, 494440, 631868, 789835, 883943, 1263736, 1579670, 1767886, 3159340, 3535772, 4419715, 6318680, 7071544, 8839430, 17678860, 35357720, 41545321, 83090642, 166181284, 207726605, 332362568, 415453210, 830906420, 1661812840]

約数ペア:

[(1, 1661812840), (2, 830906420), (4, 415453210), (5, 332362568), (8, 207726605), (10, 166181284), (20, 83090642), (40, 41545321), (47, 35357720), (94, 17678860), (188, 8839430), (235, 7071544), (263, 6318680), (376, 4419715), (470, 3535772), (526, 3159340), (940, 1767886), (1052, 1579670), (1315, 1263736), (1880, 883943), (2104, 789835), (2630, 631868), (3361, 494440), (5260, 315934), (6722, 247220), (10520, 157967), (12361, 134440), (13444, 123610), (16805, 98888), (24722, 67220), (26888, 61805), (33610, 49444)]