31267990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3943}}^1$

素因数の和:4024

約数の個数: 32

約数和(自身を含む): 61621056

約数和(自身を除く): 30353066

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 3943, 3965, 7886, 7930, 19715, 39430, 51259, 102518, 240523, 256295, 481046, 512590, 1202615, 2405230, 3126799, 6253598, 15633995, 31267990]

約数ペア:

[(1, 31267990), (2, 15633995), (5, 6253598), (10, 3126799), (13, 2405230), (26, 1202615), (61, 512590), (65, 481046), (122, 256295), (130, 240523), (305, 102518), (610, 51259), (793, 39430), (1586, 19715), (3943, 7930), (3965, 7886)]