130105780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{132761}}^1$

素因数の和:132784

約数の個数: 36

約数和(自身を含む): 317832228

約数和(自身を除く): 187726448

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 132761, 265522, 531044, 663805, 929327, 1327610, 1858654, 2655220, 3717308, 4646635, 6505289, 9293270, 13010578, 18586540, 26021156, 32526445, 65052890, 130105780]

約数ペア:

[(1, 130105780), (2, 65052890), (4, 32526445), (5, 26021156), (7, 18586540), (10, 13010578), (14, 9293270), (20, 6505289), (28, 4646635), (35, 3717308), (49, 2655220), (70, 1858654), (98, 1327610), (140, 929327), (196, 663805), (245, 531044), (490, 265522), (980, 132761)]