18336020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{379}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 21883180

約数列:

[1, 2, 4, 5, 10, 20, 41, 59, 82, 118, 164, 205, 236, 295, 379, 410, 590, 758, 820, 1180, 1516, 1895, 2419, 3790, 4838, 7580, 9676, 12095, 15539, 22361, 24190, 31078, 44722, 48380, 62156, 77695, 89444, 111805, 155390, 223610, 310780, 447220, 916801, 1833602, 3667204, 4584005, 9168010, 18336020]

約数ペア:

[(1, 18336020), (2, 9168010), (4, 4584005), (5, 3667204), (10, 1833602), (20, 916801), (41, 447220), (59, 310780), (82, 223610), (118, 155390), (164, 111805), (205, 89444), (236, 77695), (295, 62156), (379, 48380), (410, 44722), (590, 31078), (758, 24190), (820, 22361), (1180, 15539), (1516, 12095), (1895, 9676), (2419, 7580), (3790, 4838)]