68806780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1151}}^1$

素因数の和:1235

約数の個数: 72

約数和(自身を含む): 170989056

約数和(自身を除く): 102182276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 122, 140, 196, 244, 245, 305, 427, 490, 610, 854, 980, 1151, 1220, 1708, 2135, 2302, 2989, 4270, 4604, 5755, 5978, 8057, 8540, 11510, 11956, 14945, 16114, 23020, 29890, 32228, 40285, 56399, 59780, 70211, 80570, 112798, 140422, 161140, 225596, 280844, 281995, 351055, 491477, 563990, 702110, 982954, 1127980, 1404220, 1965908, 2457385, 3440339, 4914770, 6880678, 9829540, 13761356, 17201695, 34403390, 68806780]

約数ペア:

[(1, 68806780), (2, 34403390), (4, 17201695), (5, 13761356), (7, 9829540), (10, 6880678), (14, 4914770), (20, 3440339), (28, 2457385), (35, 1965908), (49, 1404220), (61, 1127980), (70, 982954), (98, 702110), (122, 563990), (140, 491477), (196, 351055), (244, 281995), (245, 280844), (305, 225596), (427, 161140), (490, 140422), (610, 112798), (854, 80570), (980, 70211), (1151, 59780), (1220, 56399), (1708, 40285), (2135, 32228), (2302, 29890), (2989, 23020), (4270, 16114), (4604, 14945), (5755, 11956), (5978, 11510), (8057, 8540)]