18002558980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{938611}}^1$

素因数の和:938764

約数の個数: 48

約数和(自身を含む): 43521561216

約数和(自身を除く): 25519002236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 685, 959, 1370, 1918, 2740, 3836, 4795, 9590, 19180, 938611, 1877222, 3754444, 4693055, 6570277, 9386110, 13140554, 18772220, 26281108, 32851385, 65702770, 128589707, 131405540, 257179414, 514358828, 642948535, 900127949, 1285897070, 1800255898, 2571794140, 3600511796, 4500639745, 9001279490, 18002558980]

約数ペア:

[(1, 18002558980), (2, 9001279490), (4, 4500639745), (5, 3600511796), (7, 2571794140), (10, 1800255898), (14, 1285897070), (20, 900127949), (28, 642948535), (35, 514358828), (70, 257179414), (137, 131405540), (140, 128589707), (274, 65702770), (548, 32851385), (685, 26281108), (959, 18772220), (1370, 13140554), (1918, 9386110), (2740, 6570277), (3836, 4693055), (4795, 3754444), (9590, 1877222), (19180, 938611)]