42742840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{521}}^1$

素因数の和:832

約数の個数: 64

約数和(自身を含む): 110496960

約数和(自身を除く): 67754120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 293, 521, 586, 1042, 1172, 1465, 2051, 2084, 2344, 2605, 2930, 3647, 4102, 4168, 5210, 5860, 7294, 8204, 10255, 10420, 11720, 14588, 16408, 18235, 20510, 20840, 29176, 36470, 41020, 72940, 82040, 145880, 152653, 305306, 610612, 763265, 1068571, 1221224, 1526530, 2137142, 3053060, 4274284, 5342855, 6106120, 8548568, 10685710, 21371420, 42742840]

約数ペア:

[(1, 42742840), (2, 21371420), (4, 10685710), (5, 8548568), (7, 6106120), (8, 5342855), (10, 4274284), (14, 3053060), (20, 2137142), (28, 1526530), (35, 1221224), (40, 1068571), (56, 763265), (70, 610612), (140, 305306), (280, 152653), (293, 145880), (521, 82040), (586, 72940), (1042, 41020), (1172, 36470), (1465, 29176), (2051, 20840), (2084, 20510), (2344, 18235), (2605, 16408), (2930, 14588), (3647, 11720), (4102, 10420), (4168, 10255), (5210, 8204), (5860, 7294)]