201312580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{205421}}^1$

素因数の和:205444

約数の個数: 36

約数和(自身を含む): 491780268

約数和(自身を除く): 290467688

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 205421, 410842, 821684, 1027105, 1437947, 2054210, 2875894, 4108420, 5751788, 7189735, 10065629, 14379470, 20131258, 28758940, 40262516, 50328145, 100656290, 201312580]

約数ペア:

[(1, 201312580), (2, 100656290), (4, 50328145), (5, 40262516), (7, 28758940), (10, 20131258), (14, 14379470), (20, 10065629), (28, 7189735), (35, 5751788), (49, 4108420), (70, 2875894), (98, 2054210), (140, 1437947), (196, 1027105), (245, 821684), (490, 410842), (980, 205421)]