25966640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{521}}^1$

素因数の和:630

約数の個数: 80

約数和(自身を含む): 69906240

約数和(自身を除く): 43939600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 89, 112, 140, 178, 280, 356, 445, 521, 560, 623, 712, 890, 1042, 1246, 1424, 1780, 2084, 2492, 2605, 3115, 3560, 3647, 4168, 4984, 5210, 6230, 7120, 7294, 8336, 9968, 10420, 12460, 14588, 18235, 20840, 24920, 29176, 36470, 41680, 46369, 49840, 58352, 72940, 92738, 145880, 185476, 231845, 291760, 324583, 370952, 463690, 649166, 741904, 927380, 1298332, 1622915, 1854760, 2596664, 3245830, 3709520, 5193328, 6491660, 12983320, 25966640]

約数ペア:

[(1, 25966640), (2, 12983320), (4, 6491660), (5, 5193328), (7, 3709520), (8, 3245830), (10, 2596664), (14, 1854760), (16, 1622915), (20, 1298332), (28, 927380), (35, 741904), (40, 649166), (56, 463690), (70, 370952), (80, 324583), (89, 291760), (112, 231845), (140, 185476), (178, 145880), (280, 92738), (356, 72940), (445, 58352), (521, 49840), (560, 46369), (623, 41680), (712, 36470), (890, 29176), (1042, 24920), (1246, 20840), (1424, 18235), (1780, 14588), (2084, 12460), (2492, 10420), (2605, 9968), (3115, 8336), (3560, 7294), (3647, 7120), (4168, 6230), (4984, 5210)]