239458420

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{269}}^1\times {\mathrm{947}}^1$

素因数の和:1272

約数の個数: 48

約数和(自身を含む): 516015360

約数和(自身を除く): 276556940

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 269, 470, 538, 940, 947, 1076, 1345, 1894, 2690, 3788, 4735, 5380, 9470, 12643, 18940, 25286, 44509, 50572, 63215, 89018, 126430, 178036, 222545, 252860, 254743, 445090, 509486, 890180, 1018972, 1273715, 2547430, 5094860, 11972921, 23945842, 47891684, 59864605, 119729210, 239458420]

約数ペア:

[(1, 239458420), (2, 119729210), (4, 59864605), (5, 47891684), (10, 23945842), (20, 11972921), (47, 5094860), (94, 2547430), (188, 1273715), (235, 1018972), (269, 890180), (470, 509486), (538, 445090), (940, 254743), (947, 252860), (1076, 222545), (1345, 178036), (1894, 126430), (2690, 89018), (3788, 63215), (4735, 50572), (5380, 44509), (9470, 25286), (12643, 18940)]