259495420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^2\times {\mathrm{149}}^1$

素因数の和:295

約数の個数: 72

約数和(自身を含む): 577180800

約数和(自身を除く): 317685380

約数列:

[1, 2, 4, 5, 10, 20, 31, 53, 62, 106, 124, 149, 155, 212, 265, 298, 310, 530, 596, 620, 745, 1060, 1490, 1643, 2809, 2980, 3286, 4619, 5618, 6572, 7897, 8215, 9238, 11236, 14045, 15794, 16430, 18476, 23095, 28090, 31588, 32860, 39485, 46190, 56180, 78970, 87079, 92380, 157940, 174158, 244807, 348316, 418541, 435395, 489614, 837082, 870790, 979228, 1224035, 1674164, 1741580, 2092705, 2448070, 4185410, 4896140, 8370820, 12974771, 25949542, 51899084, 64873855, 129747710, 259495420]

約数ペア:

[(1, 259495420), (2, 129747710), (4, 64873855), (5, 51899084), (10, 25949542), (20, 12974771), (31, 8370820), (53, 4896140), (62, 4185410), (106, 2448070), (124, 2092705), (149, 1741580), (155, 1674164), (212, 1224035), (265, 979228), (298, 870790), (310, 837082), (530, 489614), (596, 435395), (620, 418541), (745, 348316), (1060, 244807), (1490, 174158), (1643, 157940), (2809, 92380), (2980, 87079), (3286, 78970), (4619, 56180), (5618, 46190), (6572, 39485), (7897, 32860), (8215, 31588), (9238, 28090), (11236, 23095), (14045, 18476), (15794, 16430)]