20154780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2731}}^1$

素因数の和:2787

約数の個数: 72

約数和(自身を含む): 62650224

約数和(自身を除く): 42495444

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 2731, 3690, 5462, 7380, 8193, 10924, 13655, 16386, 24579, 27310, 32772, 40965, 49158, 54620, 81930, 98316, 111971, 122895, 163860, 223942, 245790, 335913, 447884, 491580, 559855, 671826, 1007739, 1119710, 1343652, 1679565, 2015478, 2239420, 3359130, 4030956, 5038695, 6718260, 10077390, 20154780]

約数ペア:

[(1, 20154780), (2, 10077390), (3, 6718260), (4, 5038695), (5, 4030956), (6, 3359130), (9, 2239420), (10, 2015478), (12, 1679565), (15, 1343652), (18, 1119710), (20, 1007739), (30, 671826), (36, 559855), (41, 491580), (45, 447884), (60, 335913), (82, 245790), (90, 223942), (123, 163860), (164, 122895), (180, 111971), (205, 98316), (246, 81930), (369, 54620), (410, 49158), (492, 40965), (615, 32772), (738, 27310), (820, 24579), (1230, 16386), (1476, 13655), (1845, 10924), (2460, 8193), (2731, 7380), (3690, 5462)]