655830

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{347}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 2004480

約数和(自身を除く): 1348650

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 347, 378, 630, 694, 945, 1041, 1735, 1890, 2082, 2429, 3123, 3470, 4858, 5205, 6246, 7287, 9369, 10410, 12145, 14574, 15615, 18738, 21861, 24290, 31230, 36435, 43722, 46845, 65583, 72870, 93690, 109305, 131166, 218610, 327915, 655830]

約数ペア:

[(1, 655830), (2, 327915), (3, 218610), (5, 131166), (6, 109305), (7, 93690), (9, 72870), (10, 65583), (14, 46845), (15, 43722), (18, 36435), (21, 31230), (27, 24290), (30, 21861), (35, 18738), (42, 15615), (45, 14574), (54, 12145), (63, 10410), (70, 9369), (90, 7287), (105, 6246), (126, 5205), (135, 4858), (189, 3470), (210, 3123), (270, 2429), (315, 2082), (347, 1890), (378, 1735), (630, 1041), (694, 945)]