17945980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3001}}^1$

素因数の和:3046

約数の個数: 48

約数和(自身を含む): 42364224

約数和(自身を除く): 24418244

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 3001, 5980, 6002, 12004, 15005, 30010, 39013, 60020, 69023, 78026, 138046, 156052, 195065, 276092, 345115, 390130, 690230, 780260, 897299, 1380460, 1794598, 3589196, 4486495, 8972990, 17945980]

約数ペア:

[(1, 17945980), (2, 8972990), (4, 4486495), (5, 3589196), (10, 1794598), (13, 1380460), (20, 897299), (23, 780260), (26, 690230), (46, 390130), (52, 345115), (65, 276092), (92, 195065), (115, 156052), (130, 138046), (230, 78026), (260, 69023), (299, 60020), (460, 39013), (598, 30010), (1196, 15005), (1495, 12004), (2990, 6002), (3001, 5980)]