78294160

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19973}}^1$

素因数の和:20000

約数の個数: 60

約数和(自身を含む): 211764348

約数和(自身を除く): 133470188

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, 19973, 39946, 79892, 99865, 139811, 159784, 199730, 279622, 319568, 399460, 559244, 699055, 798920, 978677, 1118488, 1398110, 1597840, 1957354, 2236976, 2796220, 3914708, 4893385, 5592440, 7829416, 9786770, 11184880, 15658832, 19573540, 39147080, 78294160]

約数ペア:

[(1, 78294160), (2, 39147080), (4, 19573540), (5, 15658832), (7, 11184880), (8, 9786770), (10, 7829416), (14, 5592440), (16, 4893385), (20, 3914708), (28, 2796220), (35, 2236976), (40, 1957354), (49, 1597840), (56, 1398110), (70, 1118488), (80, 978677), (98, 798920), (112, 699055), (140, 559244), (196, 399460), (245, 319568), (280, 279622), (392, 199730), (490, 159784), (560, 139811), (784, 99865), (980, 79892), (1960, 39946), (3920, 19973)]