20946550

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1297}}^1$

素因数の和:1345

約数の個数: 48

約数和(自身を含む): 43457040

約数和(自身を除く): 22510490

約数列:

[1, 2, 5, 10, 17, 19, 25, 34, 38, 50, 85, 95, 170, 190, 323, 425, 475, 646, 850, 950, 1297, 1615, 2594, 3230, 6485, 8075, 12970, 16150, 22049, 24643, 32425, 44098, 49286, 64850, 110245, 123215, 220490, 246430, 418931, 551225, 616075, 837862, 1102450, 1232150, 2094655, 4189310, 10473275, 20946550]

約数ペア:

[(1, 20946550), (2, 10473275), (5, 4189310), (10, 2094655), (17, 1232150), (19, 1102450), (25, 837862), (34, 616075), (38, 551225), (50, 418931), (85, 246430), (95, 220490), (170, 123215), (190, 110245), (323, 64850), (425, 49286), (475, 44098), (646, 32425), (850, 24643), (950, 22049), (1297, 16150), (1615, 12970), (2594, 8075), (3230, 6485)]