30571660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1571}}^1$

素因数の和:1726

約数の個数: 48

約数和(自身を含む): 73946880

約数和(自身を除く): 43375220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1571, 1946, 2780, 3142, 3892, 4865, 6284, 7855, 9730, 10997, 15710, 19460, 21994, 31420, 43988, 54985, 109970, 218369, 219940, 436738, 873476, 1091845, 1528583, 2183690, 3057166, 4367380, 6114332, 7642915, 15285830, 30571660]

約数ペア:

[(1, 30571660), (2, 15285830), (4, 7642915), (5, 6114332), (7, 4367380), (10, 3057166), (14, 2183690), (20, 1528583), (28, 1091845), (35, 873476), (70, 436738), (139, 219940), (140, 218369), (278, 109970), (556, 54985), (695, 43988), (973, 31420), (1390, 21994), (1571, 19460), (1946, 15710), (2780, 10997), (3142, 9730), (3892, 7855), (4865, 6284)]