278902960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{9397}}^1$

素因数の和:9470

約数の個数: 80

約数和(自身を含む): 755148096

約数和(自身を除く): 476245136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 70, 80, 106, 112, 140, 212, 265, 280, 371, 424, 530, 560, 742, 848, 1060, 1484, 1855, 2120, 2968, 3710, 4240, 5936, 7420, 9397, 14840, 18794, 29680, 37588, 46985, 65779, 75176, 93970, 131558, 150352, 187940, 263116, 328895, 375880, 498041, 526232, 657790, 751760, 996082, 1052464, 1315580, 1992164, 2490205, 2631160, 3486287, 3984328, 4980410, 5262320, 6972574, 7968656, 9960820, 13945148, 17431435, 19921640, 27890296, 34862870, 39843280, 55780592, 69725740, 139451480, 278902960]

約数ペア:

[(1, 278902960), (2, 139451480), (4, 69725740), (5, 55780592), (7, 39843280), (8, 34862870), (10, 27890296), (14, 19921640), (16, 17431435), (20, 13945148), (28, 9960820), (35, 7968656), (40, 6972574), (53, 5262320), (56, 4980410), (70, 3984328), (80, 3486287), (106, 2631160), (112, 2490205), (140, 1992164), (212, 1315580), (265, 1052464), (280, 996082), (371, 751760), (424, 657790), (530, 526232), (560, 498041), (742, 375880), (848, 328895), (1060, 263116), (1484, 187940), (1855, 150352), (2120, 131558), (2968, 93970), (3710, 75176), (4240, 65779), (5936, 46985), (7420, 37588), (9397, 29680), (14840, 18794)]