81707430

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{389083}}^1$

素因数の和:389100

約数の個数: 32

約数和(自身を含む): 224112384

約数和(自身を除く): 142404954

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 389083, 778166, 1167249, 1945415, 2334498, 2723581, 3890830, 5447162, 5836245, 8170743, 11672490, 13617905, 16341486, 27235810, 40853715, 81707430]

約数ペア:

[(1, 81707430), (2, 40853715), (3, 27235810), (5, 16341486), (6, 13617905), (7, 11672490), (10, 8170743), (14, 5836245), (15, 5447162), (21, 3890830), (30, 2723581), (35, 2334498), (42, 1945415), (70, 1167249), (105, 778166), (210, 389083)]