83680240

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{21347}}^1$

素因数の和:21374

約数の個数: 60

約数和(自身を含む): 226331496

約数和(自身を除く): 142651256

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 21347, 42694, 85388, 106735, 149429, 170776, 213470, 298858, 341552, 426940, 597716, 747145, 853880, 1046003, 1195432, 1494290, 1707760, 2092006, 2390864, 2988580, 4184012, 5230015, 5977160, 8368024, 10460030, 11954320, 16736048, 20920060, 41840120, 83680240]

約数ペア:

[(1, 83680240), (2, 41840120), (4, 20920060), (5, 16736048), (7, 11954320), (8, 10460030), (10, 8368024), (14, 5977160), (16, 5230015), (20, 4184012), (28, 2988580), (35, 2390864), (40, 2092006), (49, 1707760), (56, 1494290), (70, 1195432), (80, 1046003), (98, 853880), (112, 747145), (140, 597716), (196, 426940), (245, 341552), (280, 298858), (392, 213470), (490, 170776), (560, 149429), (784, 106735), (980, 85388), (1960, 42694), (3920, 21347)]