881356420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{331337}}^1$

素因数の和:331372

約数の個数: 48

約数和(自身を含む): 2226591360

約数和(自身を除く): 1345234940

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 331337, 662674, 1325348, 1656685, 2319359, 3313370, 4638718, 6295403, 6626740, 9277436, 11596795, 12590806, 23193590, 25181612, 31477015, 44067821, 46387180, 62954030, 88135642, 125908060, 176271284, 220339105, 440678210, 881356420]

約数ペア:

[(1, 881356420), (2, 440678210), (4, 220339105), (5, 176271284), (7, 125908060), (10, 88135642), (14, 62954030), (19, 46387180), (20, 44067821), (28, 31477015), (35, 25181612), (38, 23193590), (70, 12590806), (76, 11596795), (95, 9277436), (133, 6626740), (140, 6295403), (190, 4638718), (266, 3313370), (380, 2319359), (532, 1656685), (665, 1325348), (1330, 662674), (2660, 331337)]