7071940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 15649200

約数和(自身を除く): 8577260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 89, 116, 137, 145, 178, 274, 290, 356, 445, 548, 580, 685, 890, 1370, 1780, 2581, 2740, 3973, 5162, 7946, 10324, 12193, 12905, 15892, 19865, 24386, 25810, 39730, 48772, 51620, 60965, 79460, 121930, 243860, 353597, 707194, 1414388, 1767985, 3535970, 7071940]

約数ペア:

[(1, 7071940), (2, 3535970), (4, 1767985), (5, 1414388), (10, 707194), (20, 353597), (29, 243860), (58, 121930), (89, 79460), (116, 60965), (137, 51620), (145, 48772), (178, 39730), (274, 25810), (290, 24386), (356, 19865), (445, 15892), (548, 12905), (580, 12193), (685, 10324), (890, 7946), (1370, 5162), (1780, 3973), (2581, 2740)]