278323580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{10949}}^1$

素因数の和:11030

約数の個数: 48

約数和(自身を含む): 618105600

約数和(自身を除く): 339782020

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 1271, 2542, 5084, 6355, 10949, 12710, 21898, 25420, 43796, 54745, 109490, 218980, 339419, 448909, 678838, 897818, 1357676, 1697095, 1795636, 2244545, 3394190, 4489090, 6788380, 8978180, 13916179, 27832358, 55664716, 69580895, 139161790, 278323580]

約数ペア:

[(1, 278323580), (2, 139161790), (4, 69580895), (5, 55664716), (10, 27832358), (20, 13916179), (31, 8978180), (41, 6788380), (62, 4489090), (82, 3394190), (124, 2244545), (155, 1795636), (164, 1697095), (205, 1357676), (310, 897818), (410, 678838), (620, 448909), (820, 339419), (1271, 218980), (2542, 109490), (5084, 54745), (6355, 43796), (10949, 25420), (12710, 21898)]