64742320

素因数分解:

$2^4\times 5^1\times {\mathrm{383}}^1\times {\mathrm{2113}}^1$

素因数の和:2509

約数の個数: 40

約数和(自身を含む): 150990336

約数和(自身を除く): 86248016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 383, 766, 1532, 1915, 2113, 3064, 3830, 4226, 6128, 7660, 8452, 10565, 15320, 16904, 21130, 30640, 33808, 42260, 84520, 169040, 809279, 1618558, 3237116, 4046395, 6474232, 8092790, 12948464, 16185580, 32371160, 64742320]

約数ペア:

[(1, 64742320), (2, 32371160), (4, 16185580), (5, 12948464), (8, 8092790), (10, 6474232), (16, 4046395), (20, 3237116), (40, 1618558), (80, 809279), (383, 169040), (766, 84520), (1532, 42260), (1915, 33808), (2113, 30640), (3064, 21130), (3830, 16904), (4226, 15320), (6128, 10565), (7660, 8452)]