39897520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^3\times {\mathrm{227}}^1$

素因数の和:279

約数の個数: 80

約数和(自身を含む): 100931040

約数和(自身を除く): 61033520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 227, 260, 338, 454, 520, 676, 845, 908, 1040, 1135, 1352, 1690, 1816, 2197, 2270, 2704, 2951, 3380, 3632, 4394, 4540, 5902, 6760, 8788, 9080, 10985, 11804, 13520, 14755, 17576, 18160, 21970, 23608, 29510, 35152, 38363, 43940, 47216, 59020, 76726, 87880, 118040, 153452, 175760, 191815, 236080, 306904, 383630, 498719, 613808, 767260, 997438, 1534520, 1994876, 2493595, 3069040, 3989752, 4987190, 7979504, 9974380, 19948760, 39897520]

約数ペア:

[(1, 39897520), (2, 19948760), (4, 9974380), (5, 7979504), (8, 4987190), (10, 3989752), (13, 3069040), (16, 2493595), (20, 1994876), (26, 1534520), (40, 997438), (52, 767260), (65, 613808), (80, 498719), (104, 383630), (130, 306904), (169, 236080), (208, 191815), (227, 175760), (260, 153452), (338, 118040), (454, 87880), (520, 76726), (676, 59020), (845, 47216), (908, 43940), (1040, 38363), (1135, 35152), (1352, 29510), (1690, 23608), (1816, 21970), (2197, 18160), (2270, 17576), (2704, 14755), (2951, 13520), (3380, 11804), (3632, 10985), (4394, 9080), (4540, 8788), (5902, 6760)]