77431760

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19753}}^1$

素因数の和:19780

約数の個数: 60

約数和(自身を含む): 209431908

約数和(自身を除く): 132000148

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, 19753, 39506, 79012, 98765, 138271, 158024, 197530, 276542, 316048, 395060, 553084, 691355, 790120, 967897, 1106168, 1382710, 1580240, 1935794, 2212336, 2765420, 3871588, 4839485, 5530840, 7743176, 9678970, 11061680, 15486352, 19357940, 38715880, 77431760]

約数ペア:

[(1, 77431760), (2, 38715880), (4, 19357940), (5, 15486352), (7, 11061680), (8, 9678970), (10, 7743176), (14, 5530840), (16, 4839485), (20, 3871588), (28, 2765420), (35, 2212336), (40, 1935794), (49, 1580240), (56, 1382710), (70, 1106168), (80, 967897), (98, 790120), (112, 691355), (140, 553084), (196, 395060), (245, 316048), (280, 276542), (392, 197530), (490, 158024), (560, 138271), (784, 98765), (980, 79012), (1960, 39506), (3920, 19753)]