19573540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19973}}^1$

素因数の和:19996

約数の個数: 36

約数和(自身を含む): 47817756

約数和(自身を除く): 28244216

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 19973, 39946, 79892, 99865, 139811, 199730, 279622, 399460, 559244, 699055, 978677, 1398110, 1957354, 2796220, 3914708, 4893385, 9786770, 19573540]

約数ペア:

[(1, 19573540), (2, 9786770), (4, 4893385), (5, 3914708), (7, 2796220), (10, 1957354), (14, 1398110), (20, 978677), (28, 699055), (35, 559244), (49, 399460), (70, 279622), (98, 199730), (140, 139811), (196, 99865), (245, 79892), (490, 39946), (980, 19973)]