311275380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{399071}}^1$

素因数の和:399096

約数の個数: 48

約数和(自身を含む): 938617344

約数和(自身を除く): 627341964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 399071, 798142, 1197213, 1596284, 1995355, 2394426, 3990710, 4788852, 5187923, 5986065, 7981420, 10375846, 11972130, 15563769, 20751692, 23944260, 25939615, 31127538, 51879230, 62255076, 77818845, 103758460, 155637690, 311275380]

約数ペア:

[(1, 311275380), (2, 155637690), (3, 103758460), (4, 77818845), (5, 62255076), (6, 51879230), (10, 31127538), (12, 25939615), (13, 23944260), (15, 20751692), (20, 15563769), (26, 11972130), (30, 10375846), (39, 7981420), (52, 5986065), (60, 5187923), (65, 4788852), (78, 3990710), (130, 2394426), (156, 1995355), (195, 1596284), (260, 1197213), (390, 798142), (780, 399071)]