249675270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{640193}}^1$

素因数の和:640216

約数の個数: 32

約数和(自身を含む): 645315552

約数和(自身を除く): 395640282

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 640193, 1280386, 1920579, 3200965, 3841158, 6401930, 8322509, 9602895, 16645018, 19205790, 24967527, 41612545, 49935054, 83225090, 124837635, 249675270]

約数ペア:

[(1, 249675270), (2, 124837635), (3, 83225090), (5, 49935054), (6, 41612545), (10, 24967527), (13, 19205790), (15, 16645018), (26, 9602895), (30, 8322509), (39, 6401930), (65, 3841158), (78, 3200965), (130, 1920579), (195, 1280386), (390, 640193)]