12628400

素因数分解:

$2^4\times 5^2\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:390

約数の個数: 60

約数和(自身を含む): 30698184

約数和(自身を除く): 18069784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 131, 200, 241, 262, 400, 482, 524, 655, 964, 1048, 1205, 1310, 1928, 2096, 2410, 2620, 3275, 3856, 4820, 5240, 6025, 6550, 9640, 10480, 12050, 13100, 19280, 24100, 26200, 31571, 48200, 52400, 63142, 96400, 126284, 157855, 252568, 315710, 505136, 631420, 789275, 1262840, 1578550, 2525680, 3157100, 6314200, 12628400]

約数ペア:

[(1, 12628400), (2, 6314200), (4, 3157100), (5, 2525680), (8, 1578550), (10, 1262840), (16, 789275), (20, 631420), (25, 505136), (40, 315710), (50, 252568), (80, 157855), (100, 126284), (131, 96400), (200, 63142), (241, 52400), (262, 48200), (400, 31571), (482, 26200), (524, 24100), (655, 19280), (964, 13100), (1048, 12050), (1205, 10480), (1310, 9640), (1928, 6550), (2096, 6025), (2410, 5240), (2620, 4820), (3275, 3856)]