15161800

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{43}}^2$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 36970290

約数和(自身を除く): 21808490

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 43, 50, 82, 86, 100, 164, 172, 200, 205, 215, 328, 344, 410, 430, 820, 860, 1025, 1075, 1640, 1720, 1763, 1849, 2050, 2150, 3526, 3698, 4100, 4300, 7052, 7396, 8200, 8600, 8815, 9245, 14104, 14792, 17630, 18490, 35260, 36980, 44075, 46225, 70520, 73960, 75809, 88150, 92450, 151618, 176300, 184900, 303236, 352600, 369800, 379045, 606472, 758090, 1516180, 1895225, 3032360, 3790450, 7580900, 15161800]

約数ペア:

[(1, 15161800), (2, 7580900), (4, 3790450), (5, 3032360), (8, 1895225), (10, 1516180), (20, 758090), (25, 606472), (40, 379045), (41, 369800), (43, 352600), (50, 303236), (82, 184900), (86, 176300), (100, 151618), (164, 92450), (172, 88150), (200, 75809), (205, 73960), (215, 70520), (328, 46225), (344, 44075), (410, 36980), (430, 35260), (820, 18490), (860, 17630), (1025, 14792), (1075, 14104), (1640, 9245), (1720, 8815), (1763, 8600), (1849, 8200), (2050, 7396), (2150, 7052), (3526, 4300), (3698, 4100)]