420219650

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{241}}^1\times {\mathrm{811}}^1$

素因数の和:1107

約数の個数: 48

約数和(自身を含む): 804094368

約数和(自身を除く): 383874718

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 241, 430, 482, 811, 1075, 1205, 1622, 2150, 2410, 4055, 6025, 8110, 10363, 12050, 20275, 20726, 34873, 40550, 51815, 69746, 103630, 174365, 195451, 259075, 348730, 390902, 518150, 871825, 977255, 1743650, 1954510, 4886275, 8404393, 9772550, 16808786, 42021965, 84043930, 210109825, 420219650]

約数ペア:

[(1, 420219650), (2, 210109825), (5, 84043930), (10, 42021965), (25, 16808786), (43, 9772550), (50, 8404393), (86, 4886275), (215, 1954510), (241, 1743650), (430, 977255), (482, 871825), (811, 518150), (1075, 390902), (1205, 348730), (1622, 259075), (2150, 195451), (2410, 174365), (4055, 103630), (6025, 69746), (8110, 51815), (10363, 40550), (12050, 34873), (20275, 20726)]