30991425

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 54996480

約数和(自身を除く): 24005055

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 109, 223, 255, 327, 425, 545, 669, 1115, 1275, 1635, 1853, 2725, 3345, 3791, 5559, 5575, 8175, 9265, 11373, 16725, 18955, 24307, 27795, 46325, 56865, 72921, 94775, 121535, 138975, 284325, 364605, 413219, 607675, 1239657, 1823025, 2066095, 6198285, 10330475, 30991425]

約数ペア:

[(1, 30991425), (3, 10330475), (5, 6198285), (15, 2066095), (17, 1823025), (25, 1239657), (51, 607675), (75, 413219), (85, 364605), (109, 284325), (223, 138975), (255, 121535), (327, 94775), (425, 72921), (545, 56865), (669, 46325), (1115, 27795), (1275, 24307), (1635, 18955), (1853, 16725), (2725, 11373), (3345, 9265), (3791, 8175), (5559, 5575)]