31831270

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 64152000

約数和(自身を除く): 32320730

約数列:

[1, 2, 5, 10, 19, 29, 38, 53, 58, 95, 106, 109, 145, 190, 218, 265, 290, 530, 545, 551, 1007, 1090, 1102, 1537, 2014, 2071, 2755, 3074, 3161, 4142, 5035, 5510, 5777, 6322, 7685, 10070, 10355, 11554, 15370, 15805, 20710, 28885, 29203, 31610, 57770, 58406, 60059, 109763, 120118, 146015, 167533, 219526, 292030, 300295, 335066, 548815, 600590, 837665, 1097630, 1675330, 3183127, 6366254, 15915635, 31831270]

約数ペア:

[(1, 31831270), (2, 15915635), (5, 6366254), (10, 3183127), (19, 1675330), (29, 1097630), (38, 837665), (53, 600590), (58, 548815), (95, 335066), (106, 300295), (109, 292030), (145, 219526), (190, 167533), (218, 146015), (265, 120118), (290, 109763), (530, 60059), (545, 58406), (551, 57770), (1007, 31610), (1090, 29203), (1102, 28885), (1537, 20710), (2014, 15805), (2071, 15370), (2755, 11554), (3074, 10355), (3161, 10070), (4142, 7685), (5035, 6322), (5510, 5777)]