78366820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{4273}}^1$

素因数の和:4420

約数の個数: 48

約数和(自身を含む): 189560448

約数和(自身を除く): 111193628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 524, 655, 917, 1310, 1834, 2620, 3668, 4273, 4585, 8546, 9170, 17092, 18340, 21365, 29911, 42730, 59822, 85460, 119644, 149555, 299110, 559763, 598220, 1119526, 2239052, 2798815, 3918341, 5597630, 7836682, 11195260, 15673364, 19591705, 39183410, 78366820]

約数ペア:

[(1, 78366820), (2, 39183410), (4, 19591705), (5, 15673364), (7, 11195260), (10, 7836682), (14, 5597630), (20, 3918341), (28, 2798815), (35, 2239052), (70, 1119526), (131, 598220), (140, 559763), (262, 299110), (524, 149555), (655, 119644), (917, 85460), (1310, 59822), (1834, 42730), (2620, 29911), (3668, 21365), (4273, 18340), (4585, 17092), (8546, 9170)]