20002788

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{1583}}^1$

素因数の和:1615

約数の個数: 72

約数和(自身を含む): 56504448

約数和(自身を除く): 36501660

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 972, 1053, 1404, 1583, 2106, 3159, 3166, 4212, 4749, 6318, 6332, 9498, 12636, 14247, 18996, 20579, 28494, 41158, 42741, 56988, 61737, 82316, 85482, 123474, 128223, 170964, 185211, 246948, 256446, 370422, 384669, 512892, 555633, 740844, 769338, 1111266, 1538676, 1666899, 2222532, 3333798, 5000697, 6667596, 10001394, 20002788]

約数ペア:

[(1, 20002788), (2, 10001394), (3, 6667596), (4, 5000697), (6, 3333798), (9, 2222532), (12, 1666899), (13, 1538676), (18, 1111266), (26, 769338), (27, 740844), (36, 555633), (39, 512892), (52, 384669), (54, 370422), (78, 256446), (81, 246948), (108, 185211), (117, 170964), (156, 128223), (162, 123474), (234, 85482), (243, 82316), (324, 61737), (351, 56988), (468, 42741), (486, 41158), (702, 28494), (972, 20579), (1053, 18996), (1404, 14247), (1583, 12636), (2106, 9498), (3159, 6332), (3166, 6318), (4212, 4749)]