18130400

素因数分解:

$2^5\times 5^2\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:324

約数の個数: 72

約数和(自身を含む): 44856504

約数和(自身を除く): 26726104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 131, 160, 173, 200, 262, 346, 400, 524, 655, 692, 800, 865, 1048, 1310, 1384, 1730, 2096, 2620, 2768, 3275, 3460, 4192, 4325, 5240, 5536, 6550, 6920, 8650, 10480, 13100, 13840, 17300, 20960, 22663, 26200, 27680, 34600, 45326, 52400, 69200, 90652, 104800, 113315, 138400, 181304, 226630, 362608, 453260, 566575, 725216, 906520, 1133150, 1813040, 2266300, 3626080, 4532600, 9065200, 18130400]

約数ペア:

[(1, 18130400), (2, 9065200), (4, 4532600), (5, 3626080), (8, 2266300), (10, 1813040), (16, 1133150), (20, 906520), (25, 725216), (32, 566575), (40, 453260), (50, 362608), (80, 226630), (100, 181304), (131, 138400), (160, 113315), (173, 104800), (200, 90652), (262, 69200), (346, 52400), (400, 45326), (524, 34600), (655, 27680), (692, 26200), (800, 22663), (865, 20960), (1048, 17300), (1310, 13840), (1384, 13100), (1730, 10480), (2096, 8650), (2620, 6920), (2768, 6550), (3275, 5536), (3460, 5240), (4192, 4325)]