21746960

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:312

約数の個数: 80

約数和(自身を含む): 53996544

約数和(自身を除く): 32249584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 53, 80, 92, 106, 115, 184, 212, 223, 230, 265, 368, 424, 446, 460, 530, 848, 892, 920, 1060, 1115, 1219, 1784, 1840, 2120, 2230, 2438, 3568, 4240, 4460, 4876, 5129, 6095, 8920, 9752, 10258, 11819, 12190, 17840, 19504, 20516, 23638, 24380, 25645, 41032, 47276, 48760, 51290, 59095, 82064, 94552, 97520, 102580, 118190, 189104, 205160, 236380, 271837, 410320, 472760, 543674, 945520, 1087348, 1359185, 2174696, 2718370, 4349392, 5436740, 10873480, 21746960]

約数ペア:

[(1, 21746960), (2, 10873480), (4, 5436740), (5, 4349392), (8, 2718370), (10, 2174696), (16, 1359185), (20, 1087348), (23, 945520), (40, 543674), (46, 472760), (53, 410320), (80, 271837), (92, 236380), (106, 205160), (115, 189104), (184, 118190), (212, 102580), (223, 97520), (230, 94552), (265, 82064), (368, 59095), (424, 51290), (446, 48760), (460, 47276), (530, 41032), (848, 25645), (892, 24380), (920, 23638), (1060, 20516), (1115, 19504), (1219, 17840), (1784, 12190), (1840, 11819), (2120, 10258), (2230, 9752), (2438, 8920), (3568, 6095), (4240, 5129), (4460, 4876)]