12972180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16631}}^1$

素因数の和:16656

約数の個数: 48

約数和(自身を含む): 39118464

約数和(自身を除く): 26146284

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, 16631, 33262, 49893, 66524, 83155, 99786, 166310, 199572, 216203, 249465, 332620, 432406, 498930, 648609, 864812, 997860, 1081015, 1297218, 2162030, 2594436, 3243045, 4324060, 6486090, 12972180]

約数ペア:

[(1, 12972180), (2, 6486090), (3, 4324060), (4, 3243045), (5, 2594436), (6, 2162030), (10, 1297218), (12, 1081015), (13, 997860), (15, 864812), (20, 648609), (26, 498930), (30, 432406), (39, 332620), (52, 249465), (60, 216203), (65, 199572), (78, 166310), (130, 99786), (156, 83155), (195, 66524), (260, 49893), (390, 33262), (780, 16631)]