18165780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2347}}^1$

素因数の和:2405

約数の個数: 72

約数和(自身を含む): 56408352

約数和(自身を除く): 38242572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2347, 2580, 3870, 4694, 7041, 7740, 9388, 11735, 14082, 21123, 23470, 28164, 35205, 42246, 46940, 70410, 84492, 100921, 105615, 140820, 201842, 211230, 302763, 403684, 422460, 504605, 605526, 908289, 1009210, 1211052, 1513815, 1816578, 2018420, 3027630, 3633156, 4541445, 6055260, 9082890, 18165780]

約数ペア:

[(1, 18165780), (2, 9082890), (3, 6055260), (4, 4541445), (5, 3633156), (6, 3027630), (9, 2018420), (10, 1816578), (12, 1513815), (15, 1211052), (18, 1009210), (20, 908289), (30, 605526), (36, 504605), (43, 422460), (45, 403684), (60, 302763), (86, 211230), (90, 201842), (129, 140820), (172, 105615), (180, 100921), (215, 84492), (258, 70410), (387, 46940), (430, 42246), (516, 35205), (645, 28164), (774, 23470), (860, 21123), (1290, 14082), (1548, 11735), (1935, 9388), (2347, 7740), (2580, 7041), (3870, 4694)]