12900560

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^2\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 60

約数和(自身を含む): 31065348

約数和(自身を除く): 18164788

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 73, 80, 94, 146, 188, 235, 292, 365, 376, 470, 584, 730, 752, 940, 1168, 1460, 1880, 2209, 2920, 3431, 3760, 4418, 5840, 6862, 8836, 11045, 13724, 17155, 17672, 22090, 27448, 34310, 35344, 44180, 54896, 68620, 88360, 137240, 161257, 176720, 274480, 322514, 645028, 806285, 1290056, 1612570, 2580112, 3225140, 6450280, 12900560]

約数ペア:

[(1, 12900560), (2, 6450280), (4, 3225140), (5, 2580112), (8, 1612570), (10, 1290056), (16, 806285), (20, 645028), (40, 322514), (47, 274480), (73, 176720), (80, 161257), (94, 137240), (146, 88360), (188, 68620), (235, 54896), (292, 44180), (365, 35344), (376, 34310), (470, 27448), (584, 22090), (730, 17672), (752, 17155), (940, 13724), (1168, 11045), (1460, 8836), (1880, 6862), (2209, 5840), (2920, 4418), (3431, 3760)]