278814140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{4049}}^1$

素因数の和:4382

約数の個数: 48

約数和(自身を含む): 640936800

約数和(自身を除く): 362122660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 313, 626, 1252, 1565, 3130, 3443, 4049, 6260, 6886, 8098, 13772, 16196, 17215, 20245, 34430, 40490, 44539, 68860, 80980, 89078, 178156, 222695, 445390, 890780, 1267337, 2534674, 5069348, 6336685, 12673370, 13940707, 25346740, 27881414, 55762828, 69703535, 139407070, 278814140]

約数ペア:

[(1, 278814140), (2, 139407070), (4, 69703535), (5, 55762828), (10, 27881414), (11, 25346740), (20, 13940707), (22, 12673370), (44, 6336685), (55, 5069348), (110, 2534674), (220, 1267337), (313, 890780), (626, 445390), (1252, 222695), (1565, 178156), (3130, 89078), (3443, 80980), (4049, 68860), (6260, 44539), (6886, 40490), (8098, 34430), (13772, 20245), (16196, 17215)]