51615225

素因数分解:

$3^4\times 5^2\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:452

約数の個数: 60

約数和(自身を含む): 97225920

約数和(自身を除く): 45610695

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 81, 135, 213, 225, 355, 359, 405, 639, 675, 1065, 1077, 1775, 1795, 1917, 2025, 3195, 3231, 5325, 5385, 5751, 8975, 9585, 9693, 15975, 16155, 25489, 26925, 28755, 29079, 47925, 48465, 76467, 80775, 127445, 143775, 145395, 229401, 242325, 382335, 637225, 688203, 726975, 1147005, 1911675, 2064609, 3441015, 5735025, 10323045, 17205075, 51615225]

約数ペア:

[(1, 51615225), (3, 17205075), (5, 10323045), (9, 5735025), (15, 3441015), (25, 2064609), (27, 1911675), (45, 1147005), (71, 726975), (75, 688203), (81, 637225), (135, 382335), (213, 242325), (225, 229401), (355, 145395), (359, 143775), (405, 127445), (639, 80775), (675, 76467), (1065, 48465), (1077, 47925), (1775, 29079), (1795, 28755), (1917, 26925), (2025, 25489), (3195, 16155), (3231, 15975), (5325, 9693), (5385, 9585), (5751, 8975)]