7948400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:690

約数の個数: 60

約数和(自身を含む): 19742784

約数和(自身を除く): 11794384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 641, 775, 1240, 1282, 1550, 2480, 2564, 3100, 3205, 5128, 6200, 6410, 10256, 12400, 12820, 16025, 19871, 25640, 32050, 39742, 51280, 64100, 79484, 99355, 128200, 158968, 198710, 256400, 317936, 397420, 496775, 794840, 993550, 1589680, 1987100, 3974200, 7948400]

約数ペア:

[(1, 7948400), (2, 3974200), (4, 1987100), (5, 1589680), (8, 993550), (10, 794840), (16, 496775), (20, 397420), (25, 317936), (31, 256400), (40, 198710), (50, 158968), (62, 128200), (80, 99355), (100, 79484), (124, 64100), (155, 51280), (200, 39742), (248, 32050), (310, 25640), (400, 19871), (496, 16025), (620, 12820), (641, 12400), (775, 10256), (1240, 6410), (1282, 6200), (1550, 5128), (2480, 3205), (2564, 3100)]