18869325

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 32783616

約数和(自身を除く): 13914291

約数列:

[1, 3, 5, 15, 25, 47, 53, 75, 101, 141, 159, 235, 265, 303, 505, 705, 795, 1175, 1325, 1515, 2491, 2525, 3525, 3975, 4747, 5353, 7473, 7575, 12455, 14241, 16059, 23735, 26765, 37365, 62275, 71205, 80295, 118675, 133825, 186825, 251591, 356025, 401475, 754773, 1257955, 3773865, 6289775, 18869325]

約数ペア:

[(1, 18869325), (3, 6289775), (5, 3773865), (15, 1257955), (25, 754773), (47, 401475), (53, 356025), (75, 251591), (101, 186825), (141, 133825), (159, 118675), (235, 80295), (265, 71205), (303, 62275), (505, 37365), (705, 26765), (795, 23735), (1175, 16059), (1325, 14241), (1515, 12455), (2491, 7575), (2525, 7473), (3525, 5353), (3975, 4747)]