80589640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{5581}}^1$

素因数の和:5630

約数の個数: 48

約数和(自身を含む): 191406780

約数和(自身を除く): 110817140

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3610, 5581, 7220, 11162, 14440, 22324, 27905, 44648, 55810, 106039, 111620, 212078, 223240, 424156, 530195, 848312, 1060390, 2014741, 2120780, 4029482, 4241560, 8058964, 10073705, 16117928, 20147410, 40294820, 80589640]

約数ペア:

[(1, 80589640), (2, 40294820), (4, 20147410), (5, 16117928), (8, 10073705), (10, 8058964), (19, 4241560), (20, 4029482), (38, 2120780), (40, 2014741), (76, 1060390), (95, 848312), (152, 530195), (190, 424156), (361, 223240), (380, 212078), (722, 111620), (760, 106039), (1444, 55810), (1805, 44648), (2888, 27905), (3610, 22324), (5581, 14440), (7220, 11162)]