8178020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{359}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 18506880

約数和(自身を除く): 10328860

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 85, 134, 170, 268, 335, 340, 359, 670, 718, 1139, 1340, 1436, 1795, 2278, 3590, 4556, 5695, 6103, 7180, 11390, 12206, 22780, 24053, 24412, 30515, 48106, 61030, 96212, 120265, 122060, 240530, 408901, 481060, 817802, 1635604, 2044505, 4089010, 8178020]

約数ペア:

[(1, 8178020), (2, 4089010), (4, 2044505), (5, 1635604), (10, 817802), (17, 481060), (20, 408901), (34, 240530), (67, 122060), (68, 120265), (85, 96212), (134, 61030), (170, 48106), (268, 30515), (335, 24412), (340, 24053), (359, 22780), (670, 12206), (718, 11390), (1139, 7180), (1340, 6103), (1436, 5695), (1795, 4556), (2278, 3590)]