78941440

素因数分解:

$2^8\times 5^1\times {\mathrm{61673}}^1$

素因数の和:61694

約数の個数: 36

約数和(自身を含む): 189092484

約数和(自身を除く): 110151044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 61673, 123346, 246692, 308365, 493384, 616730, 986768, 1233460, 1973536, 2466920, 3947072, 4933840, 7894144, 9867680, 15788288, 19735360, 39470720, 78941440]

約数ペア:

[(1, 78941440), (2, 39470720), (4, 19735360), (5, 15788288), (8, 9867680), (10, 7894144), (16, 4933840), (20, 3947072), (32, 2466920), (40, 1973536), (64, 1233460), (80, 986768), (128, 616730), (160, 493384), (256, 308365), (320, 246692), (640, 123346), (1280, 61673)]