291289420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{3259}}^1$

素因数の和:3418

約数の個数: 48

約数和(自身を含む): 632570400

約数和(自身を除く): 341280980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 109, 164, 205, 218, 410, 436, 545, 820, 1090, 2180, 3259, 4469, 6518, 8938, 13036, 16295, 17876, 22345, 32590, 44690, 65180, 89380, 133619, 267238, 355231, 534476, 668095, 710462, 1336190, 1420924, 1776155, 2672380, 3552310, 7104620, 14564471, 29128942, 58257884, 72822355, 145644710, 291289420]

約数ペア:

[(1, 291289420), (2, 145644710), (4, 72822355), (5, 58257884), (10, 29128942), (20, 14564471), (41, 7104620), (82, 3552310), (109, 2672380), (164, 1776155), (205, 1420924), (218, 1336190), (410, 710462), (436, 668095), (545, 534476), (820, 355231), (1090, 267238), (2180, 133619), (3259, 89380), (4469, 65180), (6518, 44690), (8938, 32590), (13036, 22345), (16295, 17876)]