85678780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{2039}}^1$

素因数の和:2250

約数の個数: 48

約数和(自身を含む): 197406720

約数和(自身を除く): 111727940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 191, 220, 382, 764, 955, 1910, 2039, 2101, 3820, 4078, 4202, 8156, 8404, 10195, 10505, 20390, 21010, 22429, 40780, 42020, 44858, 89716, 112145, 224290, 389449, 448580, 778898, 1557796, 1947245, 3894490, 4283939, 7788980, 8567878, 17135756, 21419695, 42839390, 85678780]

約数ペア:

[(1, 85678780), (2, 42839390), (4, 21419695), (5, 17135756), (10, 8567878), (11, 7788980), (20, 4283939), (22, 3894490), (44, 1947245), (55, 1557796), (110, 778898), (191, 448580), (220, 389449), (382, 224290), (764, 112145), (955, 89716), (1910, 44858), (2039, 42020), (2101, 40780), (3820, 22429), (4078, 21010), (4202, 20390), (8156, 10505), (8404, 10195)]