12983320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{521}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 33825600

約数和(自身を除く): 20842280

約数列:

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

約数ペア:

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