78316720

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1879}}^1$

素因数の和:2413

約数の個数: 40

約数和(自身を含む): 182532960

約数和(自身を除く): 104216240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 1042, 1879, 2084, 2605, 3758, 4168, 5210, 7516, 8336, 9395, 10420, 15032, 18790, 20840, 30064, 37580, 41680, 75160, 150320, 978959, 1957918, 3915836, 4894795, 7831672, 9789590, 15663344, 19579180, 39158360, 78316720]

約数ペア:

[(1, 78316720), (2, 39158360), (4, 19579180), (5, 15663344), (8, 9789590), (10, 7831672), (16, 4894795), (20, 3915836), (40, 1957918), (80, 978959), (521, 150320), (1042, 75160), (1879, 41680), (2084, 37580), (2605, 30064), (3758, 20840), (4168, 18790), (5210, 15032), (7516, 10420), (8336, 9395)]