278308520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{10247}}^1$

素因数の和:10362

約数の個数: 64

約数和(自身を含む): 723098880

約数和(自身を除く): 444790360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 97, 140, 194, 280, 388, 485, 679, 776, 970, 1358, 1940, 2716, 3395, 3880, 5432, 6790, 10247, 13580, 20494, 27160, 40988, 51235, 71729, 81976, 102470, 143458, 204940, 286916, 358645, 409880, 573832, 717290, 993959, 1434580, 1987918, 2869160, 3975836, 4969795, 6957713, 7951672, 9939590, 13915426, 19879180, 27830852, 34788565, 39758360, 55661704, 69577130, 139154260, 278308520]

約数ペア:

[(1, 278308520), (2, 139154260), (4, 69577130), (5, 55661704), (7, 39758360), (8, 34788565), (10, 27830852), (14, 19879180), (20, 13915426), (28, 9939590), (35, 7951672), (40, 6957713), (56, 4969795), (70, 3975836), (97, 2869160), (140, 1987918), (194, 1434580), (280, 993959), (388, 717290), (485, 573832), (679, 409880), (776, 358645), (970, 286916), (1358, 204940), (1940, 143458), (2716, 102470), (3395, 81976), (3880, 71729), (5432, 51235), (6790, 40988), (10247, 27160), (13580, 20494)]