29981540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{809}}^1$

素因数の和:944

約数の個数: 48

約数和(自身を含む): 67359600

約数和(自身を除く): 37378060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 218, 340, 436, 545, 809, 1090, 1618, 1853, 2180, 3236, 3706, 4045, 7412, 8090, 9265, 13753, 16180, 18530, 27506, 37060, 55012, 68765, 88181, 137530, 176362, 275060, 352724, 440905, 881810, 1499077, 1763620, 2998154, 5996308, 7495385, 14990770, 29981540]

約数ペア:

[(1, 29981540), (2, 14990770), (4, 7495385), (5, 5996308), (10, 2998154), (17, 1763620), (20, 1499077), (34, 881810), (68, 440905), (85, 352724), (109, 275060), (170, 176362), (218, 137530), (340, 88181), (436, 68765), (545, 55012), (809, 37060), (1090, 27506), (1618, 18530), (1853, 16180), (2180, 13753), (3236, 9265), (3706, 8090), (4045, 7412)]