4080180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5231}}^1$

素因数の和:5256

約数の個数: 48

約数和(自身を含む): 12305664

約数和(自身を除く): 8225484

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, 5231, 10462, 15693, 20924, 26155, 31386, 52310, 62772, 68003, 78465, 104620, 136006, 156930, 204009, 272012, 313860, 340015, 408018, 680030, 816036, 1020045, 1360060, 2040090, 4080180]

約数ペア:

[(1, 4080180), (2, 2040090), (3, 1360060), (4, 1020045), (5, 816036), (6, 680030), (10, 408018), (12, 340015), (13, 313860), (15, 272012), (20, 204009), (26, 156930), (30, 136006), (39, 104620), (52, 78465), (60, 68003), (65, 62772), (78, 52310), (130, 31386), (156, 26155), (195, 20924), (260, 15693), (390, 10462), (780, 5231)]