77876680

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{39733}}^1$

素因数の和:39758

約数の個数: 48

約数和(自身を含む): 203835420

約数和(自身を除く): 125958740

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 39733, 79466, 158932, 198665, 278131, 317864, 397330, 556262, 794660, 1112524, 1390655, 1589320, 1946917, 2225048, 2781310, 3893834, 5562620, 7787668, 9734585, 11125240, 15575336, 19469170, 38938340, 77876680]

約数ペア:

[(1, 77876680), (2, 38938340), (4, 19469170), (5, 15575336), (7, 11125240), (8, 9734585), (10, 7787668), (14, 5562620), (20, 3893834), (28, 2781310), (35, 2225048), (40, 1946917), (49, 1589320), (56, 1390655), (70, 1112524), (98, 794660), (140, 556262), (196, 397330), (245, 317864), (280, 278131), (392, 198665), (490, 158932), (980, 79466), (1960, 39733)]