18108440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9239}}^1$

素因数の和:9264

約数の個数: 48

約数和(自身を含む): 47401200

約数和(自身を除く): 29292760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9239, 18478, 36956, 46195, 64673, 73912, 92390, 129346, 184780, 258692, 323365, 369560, 452711, 517384, 646730, 905422, 1293460, 1810844, 2263555, 2586920, 3621688, 4527110, 9054220, 18108440]

約数ペア:

[(1, 18108440), (2, 9054220), (4, 4527110), (5, 3621688), (7, 2586920), (8, 2263555), (10, 1810844), (14, 1293460), (20, 905422), (28, 646730), (35, 517384), (40, 452711), (49, 369560), (56, 323365), (70, 258692), (98, 184780), (140, 129346), (196, 92390), (245, 73912), (280, 64673), (392, 46195), (490, 36956), (980, 18478), (1960, 9239)]