389957990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{4783}}^1$

素因数の和:5084

約数の個数: 32

約数和(自身を含む): 727474176

約数和(自身を除く): 337516186

約数列:

[1, 2, 5, 10, 31, 62, 155, 263, 310, 526, 1315, 2630, 4783, 8153, 9566, 16306, 23915, 40765, 47830, 81530, 148273, 296546, 741365, 1257929, 1482730, 2515858, 6289645, 12579290, 38995799, 77991598, 194978995, 389957990]

約数ペア:

[(1, 389957990), (2, 194978995), (5, 77991598), (10, 38995799), (31, 12579290), (62, 6289645), (155, 2515858), (263, 1482730), (310, 1257929), (526, 741365), (1315, 296546), (2630, 148273), (4783, 81530), (8153, 47830), (9566, 40765), (16306, 23915)]