18887080

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 44323200

約数和(自身を除く): 25436120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 59, 106, 118, 151, 212, 236, 265, 295, 302, 424, 472, 530, 590, 604, 755, 1060, 1180, 1208, 1510, 2120, 2360, 3020, 3127, 6040, 6254, 8003, 8909, 12508, 15635, 16006, 17818, 25016, 31270, 32012, 35636, 40015, 44545, 62540, 64024, 71272, 80030, 89090, 125080, 160060, 178180, 320120, 356360, 472177, 944354, 1888708, 2360885, 3777416, 4721770, 9443540, 18887080]

約数ペア:

[(1, 18887080), (2, 9443540), (4, 4721770), (5, 3777416), (8, 2360885), (10, 1888708), (20, 944354), (40, 472177), (53, 356360), (59, 320120), (106, 178180), (118, 160060), (151, 125080), (212, 89090), (236, 80030), (265, 71272), (295, 64024), (302, 62540), (424, 44545), (472, 40015), (530, 35636), (590, 32012), (604, 31270), (755, 25016), (1060, 17818), (1180, 16006), (1208, 15635), (1510, 12508), (2120, 8909), (2360, 8003), (3020, 6254), (3127, 6040)]