99990160

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{419}}^1$

素因数の和:608

約数の個数: 80

約数和(自身を含む): 246859200

約数和(自身を除く): 146869040

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 157, 190, 304, 314, 380, 419, 628, 760, 785, 838, 1256, 1520, 1570, 1676, 2095, 2512, 2983, 3140, 3352, 4190, 5966, 6280, 6704, 7961, 8380, 11932, 12560, 14915, 15922, 16760, 23864, 29830, 31844, 33520, 39805, 47728, 59660, 63688, 65783, 79610, 119320, 127376, 131566, 159220, 238640, 263132, 318440, 328915, 526264, 636880, 657830, 1052528, 1249877, 1315660, 2499754, 2631320, 4999508, 5262640, 6249385, 9999016, 12498770, 19998032, 24997540, 49995080, 99990160]

約数ペア:

[(1, 99990160), (2, 49995080), (4, 24997540), (5, 19998032), (8, 12498770), (10, 9999016), (16, 6249385), (19, 5262640), (20, 4999508), (38, 2631320), (40, 2499754), (76, 1315660), (80, 1249877), (95, 1052528), (152, 657830), (157, 636880), (190, 526264), (304, 328915), (314, 318440), (380, 263132), (419, 238640), (628, 159220), (760, 131566), (785, 127376), (838, 119320), (1256, 79610), (1520, 65783), (1570, 63688), (1676, 59660), (2095, 47728), (2512, 39805), (2983, 33520), (3140, 31844), (3352, 29830), (4190, 23864), (5966, 16760), (6280, 15922), (6704, 14915), (7961, 12560), (8380, 11932)]