78770200

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^2\times {\mathrm{1091}}^1$

素因数の和:1145

約数の個数: 72

約数和(自身を含む): 193464180

約数和(自身を除く): 114693980

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 361, 380, 475, 722, 760, 950, 1091, 1444, 1805, 1900, 2182, 2888, 3610, 3800, 4364, 5455, 7220, 8728, 9025, 10910, 14440, 18050, 20729, 21820, 27275, 36100, 41458, 43640, 54550, 72200, 82916, 103645, 109100, 165832, 207290, 218200, 393851, 414580, 518225, 787702, 829160, 1036450, 1575404, 1969255, 2072900, 3150808, 3938510, 4145800, 7877020, 9846275, 15754040, 19692550, 39385100, 78770200]

約数ペア:

[(1, 78770200), (2, 39385100), (4, 19692550), (5, 15754040), (8, 9846275), (10, 7877020), (19, 4145800), (20, 3938510), (25, 3150808), (38, 2072900), (40, 1969255), (50, 1575404), (76, 1036450), (95, 829160), (100, 787702), (152, 518225), (190, 414580), (200, 393851), (361, 218200), (380, 207290), (475, 165832), (722, 109100), (760, 103645), (950, 82916), (1091, 72200), (1444, 54550), (1805, 43640), (1900, 41458), (2182, 36100), (2888, 27275), (3610, 21820), (3800, 20729), (4364, 18050), (5455, 14440), (7220, 10910), (8728, 9025)]