138839690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 282268800

約数和(自身を除く): 143429110

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 149, 197, 215, 298, 394, 430, 473, 745, 946, 985, 1490, 1639, 1970, 2167, 2365, 3278, 4334, 4730, 6407, 8195, 8471, 10835, 12814, 16390, 16942, 21670, 29353, 32035, 42355, 58706, 64070, 70477, 84710, 93181, 140954, 146765, 186362, 293530, 322883, 352385, 465905, 645766, 704770, 931810, 1262179, 1614415, 2524358, 3228830, 6310895, 12621790, 13883969, 27767938, 69419845, 138839690]

約数ペア:

[(1, 138839690), (2, 69419845), (5, 27767938), (10, 13883969), (11, 12621790), (22, 6310895), (43, 3228830), (55, 2524358), (86, 1614415), (110, 1262179), (149, 931810), (197, 704770), (215, 645766), (298, 465905), (394, 352385), (430, 322883), (473, 293530), (745, 186362), (946, 146765), (985, 140954), (1490, 93181), (1639, 84710), (1970, 70477), (2167, 64070), (2365, 58706), (3278, 42355), (4334, 32035), (4730, 29353), (6407, 21670), (8195, 16942), (8471, 16390), (10835, 12814)]