261179490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2647}}^1$

素因数の和:2704

約数の個数: 128

約数和(自身を含む): 768724992

約数和(自身を除く): 507545502

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 23, 26, 30, 33, 39, 46, 55, 65, 66, 69, 78, 110, 115, 130, 138, 143, 165, 195, 230, 253, 286, 299, 330, 345, 390, 429, 506, 598, 690, 715, 759, 858, 897, 1265, 1430, 1495, 1518, 1794, 2145, 2530, 2647, 2990, 3289, 3795, 4290, 4485, 5294, 6578, 7590, 7941, 8970, 9867, 13235, 15882, 16445, 19734, 26470, 29117, 32890, 34411, 39705, 49335, 58234, 60881, 68822, 79410, 87351, 98670, 103233, 121762, 145585, 172055, 174702, 182643, 206466, 291170, 304405, 344110, 365286, 378521, 436755, 516165, 608810, 669691, 757042, 791453, 873510, 913215, 1032330, 1135563, 1339382, 1582906, 1826430, 1892605, 2009073, 2271126, 2374359, 3348455, 3785210, 3957265, 4018146, 4748718, 5677815, 6696910, 7914530, 8705983, 10045365, 11355630, 11871795, 17411966, 20090730, 23743590, 26117949, 43529915, 52235898, 87059830, 130589745, 261179490]

約数ペア:

[(1, 261179490), (2, 130589745), (3, 87059830), (5, 52235898), (6, 43529915), (10, 26117949), (11, 23743590), (13, 20090730), (15, 17411966), (22, 11871795), (23, 11355630), (26, 10045365), (30, 8705983), (33, 7914530), (39, 6696910), (46, 5677815), (55, 4748718), (65, 4018146), (66, 3957265), (69, 3785210), (78, 3348455), (110, 2374359), (115, 2271126), (130, 2009073), (138, 1892605), (143, 1826430), (165, 1582906), (195, 1339382), (230, 1135563), (253, 1032330), (286, 913215), (299, 873510), (330, 791453), (345, 757042), (390, 669691), (429, 608810), (506, 516165), (598, 436755), (690, 378521), (715, 365286), (759, 344110), (858, 304405), (897, 291170), (1265, 206466), (1430, 182643), (1495, 174702), (1518, 172055), (1794, 145585), (2145, 121762), (2530, 103233), (2647, 98670), (2990, 87351), (3289, 79410), (3795, 68822), (4290, 60881), (4485, 58234), (5294, 49335), (6578, 39705), (7590, 34411), (7941, 32890), (8970, 29117), (9867, 26470), (13235, 19734), (15882, 16445)]