20716710

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{829}}^1$

素因数の和:870

約数の個数: 96

約数和(自身を含む): 61313760

約数和(自身を除く): 40597050

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 17, 21, 30, 34, 35, 42, 49, 51, 70, 85, 98, 102, 105, 119, 147, 170, 210, 238, 245, 255, 294, 357, 490, 510, 595, 714, 735, 829, 833, 1190, 1470, 1658, 1666, 1785, 2487, 2499, 3570, 4145, 4165, 4974, 4998, 5803, 8290, 8330, 11606, 12435, 12495, 14093, 17409, 24870, 24990, 28186, 29015, 34818, 40621, 42279, 58030, 70465, 81242, 84558, 87045, 98651, 121863, 140930, 174090, 197302, 203105, 211395, 243726, 295953, 406210, 422790, 493255, 591906, 609315, 690557, 986510, 1218630, 1381114, 1479765, 2071671, 2959530, 3452785, 4143342, 6905570, 10358355, 20716710]

約数ペア:

[(1, 20716710), (2, 10358355), (3, 6905570), (5, 4143342), (6, 3452785), (7, 2959530), (10, 2071671), (14, 1479765), (15, 1381114), (17, 1218630), (21, 986510), (30, 690557), (34, 609315), (35, 591906), (42, 493255), (49, 422790), (51, 406210), (70, 295953), (85, 243726), (98, 211395), (102, 203105), (105, 197302), (119, 174090), (147, 140930), (170, 121863), (210, 98651), (238, 87045), (245, 84558), (255, 81242), (294, 70465), (357, 58030), (490, 42279), (510, 40621), (595, 34818), (714, 29015), (735, 28186), (829, 24990), (833, 24870), (1190, 17409), (1470, 14093), (1658, 12495), (1666, 12435), (1785, 11606), (2487, 8330), (2499, 8290), (3570, 5803), (4145, 4998), (4165, 4974)]