20101380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25771}}^1$

素因数の和:25796

約数の個数: 48

約数和(自身を含む): 60615744

約数和(自身を除く): 40514364

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, 25771, 51542, 77313, 103084, 128855, 154626, 257710, 309252, 335023, 386565, 515420, 670046, 773130, 1005069, 1340092, 1546260, 1675115, 2010138, 3350230, 4020276, 5025345, 6700460, 10050690, 20101380]

約数ペア:

[(1, 20101380), (2, 10050690), (3, 6700460), (4, 5025345), (5, 4020276), (6, 3350230), (10, 2010138), (12, 1675115), (13, 1546260), (15, 1340092), (20, 1005069), (26, 773130), (30, 670046), (39, 515420), (52, 386565), (60, 335023), (65, 309252), (78, 257710), (130, 154626), (156, 128855), (195, 103084), (260, 77313), (390, 51542), (780, 25771)]