19890312

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1723}}^1$

素因数の和:1782

約数の個数: 64

約数和(自身を含む): 55030080

約数和(自身を除く): 35139768

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 37, 39, 52, 74, 78, 104, 111, 148, 156, 222, 296, 312, 444, 481, 888, 962, 1443, 1723, 1924, 2886, 3446, 3848, 5169, 5772, 6892, 10338, 11544, 13784, 20676, 22399, 41352, 44798, 63751, 67197, 89596, 127502, 134394, 179192, 191253, 255004, 268788, 382506, 510008, 537576, 765012, 828763, 1530024, 1657526, 2486289, 3315052, 4972578, 6630104, 9945156, 19890312]

約数ペア:

[(1, 19890312), (2, 9945156), (3, 6630104), (4, 4972578), (6, 3315052), (8, 2486289), (12, 1657526), (13, 1530024), (24, 828763), (26, 765012), (37, 537576), (39, 510008), (52, 382506), (74, 268788), (78, 255004), (104, 191253), (111, 179192), (148, 134394), (156, 127502), (222, 89596), (296, 67197), (312, 63751), (444, 44798), (481, 41352), (888, 22399), (962, 20676), (1443, 13784), (1723, 11544), (1924, 10338), (2886, 6892), (3446, 5772), (3848, 5169)]