51721740

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{4561}}^1$

素因数の和:4589

約数の個数: 120

約数和(自身を含む): 185472672

約数和(自身を除く): 133750932

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 2268, 2835, 3780, 4561, 5670, 9122, 11340, 13683, 18244, 22805, 27366, 31927, 41049, 45610, 54732, 63854, 68415, 82098, 91220, 95781, 123147, 127708, 136830, 159635, 164196, 191562, 205245, 246294, 273660, 287343, 319270, 369441, 383124, 410490, 478905, 492588, 574686, 615735, 638540, 738882, 820980, 862029, 957810, 1149372, 1231470, 1436715, 1477764, 1724058, 1847205, 1915620, 2462940, 2586087, 2873430, 3448116, 3694410, 4310145, 5172174, 5746860, 7388820, 8620290, 10344348, 12930435, 17240580, 25860870, 51721740]

約数ペア:

[(1, 51721740), (2, 25860870), (3, 17240580), (4, 12930435), (5, 10344348), (6, 8620290), (7, 7388820), (9, 5746860), (10, 5172174), (12, 4310145), (14, 3694410), (15, 3448116), (18, 2873430), (20, 2586087), (21, 2462940), (27, 1915620), (28, 1847205), (30, 1724058), (35, 1477764), (36, 1436715), (42, 1231470), (45, 1149372), (54, 957810), (60, 862029), (63, 820980), (70, 738882), (81, 638540), (84, 615735), (90, 574686), (105, 492588), (108, 478905), (126, 410490), (135, 383124), (140, 369441), (162, 319270), (180, 287343), (189, 273660), (210, 246294), (252, 205245), (270, 191562), (315, 164196), (324, 159635), (378, 136830), (405, 127708), (420, 123147), (540, 95781), (567, 91220), (630, 82098), (756, 68415), (810, 63854), (945, 54732), (1134, 45610), (1260, 41049), (1620, 31927), (1890, 27366), (2268, 22805), (2835, 18244), (3780, 13683), (4561, 11340), (5670, 9122)]