78707120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{977}}^1$

素因数の和:1062

約数の個数: 80

約数和(自身を含む): 196460640

約数和(自身を除く): 117753520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 53, 76, 80, 95, 106, 152, 190, 212, 265, 304, 380, 424, 530, 760, 848, 977, 1007, 1060, 1520, 1954, 2014, 2120, 3908, 4028, 4240, 4885, 5035, 7816, 8056, 9770, 10070, 15632, 16112, 18563, 19540, 20140, 37126, 39080, 40280, 51781, 74252, 78160, 80560, 92815, 103562, 148504, 185630, 207124, 258905, 297008, 371260, 414248, 517810, 742520, 828496, 983839, 1035620, 1485040, 1967678, 2071240, 3935356, 4142480, 4919195, 7870712, 9838390, 15741424, 19676780, 39353560, 78707120]

約数ペア:

[(1, 78707120), (2, 39353560), (4, 19676780), (5, 15741424), (8, 9838390), (10, 7870712), (16, 4919195), (19, 4142480), (20, 3935356), (38, 2071240), (40, 1967678), (53, 1485040), (76, 1035620), (80, 983839), (95, 828496), (106, 742520), (152, 517810), (190, 414248), (212, 371260), (265, 297008), (304, 258905), (380, 207124), (424, 185630), (530, 148504), (760, 103562), (848, 92815), (977, 80560), (1007, 78160), (1060, 74252), (1520, 51781), (1954, 40280), (2014, 39080), (2120, 37126), (3908, 20140), (4028, 19540), (4240, 18563), (4885, 16112), (5035, 15632), (7816, 10070), (8056, 9770)]