339919340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1\times {\mathrm{1381}}^1$

素因数の和:1818

約数の個数: 48

約数和(自身を含む): 739248384

約数和(自身を除く): 399329044

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 397, 620, 794, 1381, 1588, 1985, 2762, 3970, 5524, 6905, 7940, 12307, 13810, 24614, 27620, 42811, 49228, 61535, 85622, 123070, 171244, 214055, 246140, 428110, 548257, 856220, 1096514, 2193028, 2741285, 5482570, 10965140, 16995967, 33991934, 67983868, 84979835, 169959670, 339919340]

約数ペア:

[(1, 339919340), (2, 169959670), (4, 84979835), (5, 67983868), (10, 33991934), (20, 16995967), (31, 10965140), (62, 5482570), (124, 2741285), (155, 2193028), (310, 1096514), (397, 856220), (620, 548257), (794, 428110), (1381, 246140), (1588, 214055), (1985, 171244), (2762, 123070), (3970, 85622), (5524, 61535), (6905, 49228), (7940, 42811), (12307, 27620), (13810, 24614)]