161780925

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{569}}^1$

素因数の和:822

約数の個数: 48

約数和(自身を含む): 284981760

約数和(自身を除く): 123200835

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 223, 255, 425, 569, 669, 1115, 1275, 1707, 2845, 3345, 3791, 5575, 8535, 9673, 11373, 14225, 16725, 18955, 29019, 42675, 48365, 56865, 94775, 126887, 145095, 241825, 284325, 380661, 634435, 725475, 1903305, 2157079, 3172175, 6471237, 9516525, 10785395, 32356185, 53926975, 161780925]

約数ペア:

[(1, 161780925), (3, 53926975), (5, 32356185), (15, 10785395), (17, 9516525), (25, 6471237), (51, 3172175), (75, 2157079), (85, 1903305), (223, 725475), (255, 634435), (425, 380661), (569, 284325), (669, 241825), (1115, 145095), (1275, 126887), (1707, 94775), (2845, 56865), (3345, 48365), (3791, 42675), (5575, 29019), (8535, 18955), (9673, 16725), (11373, 14225)]