210909050

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:596

約数の個数: 72

約数和(自身を含む): 438159456

約数和(自身を除く): 227250406

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 71, 110, 121, 142, 242, 275, 355, 491, 550, 605, 710, 781, 982, 1210, 1562, 1775, 2455, 3025, 3550, 3905, 4910, 5401, 6050, 7810, 8591, 10802, 12275, 17182, 19525, 24550, 27005, 34861, 39050, 42955, 54010, 59411, 69722, 85910, 118822, 135025, 174305, 214775, 270050, 297055, 348610, 383471, 429550, 594110, 766942, 871525, 1485275, 1743050, 1917355, 2970550, 3834710, 4218181, 8436362, 9586775, 19173550, 21090905, 42181810, 105454525, 210909050]

約数ペア:

[(1, 210909050), (2, 105454525), (5, 42181810), (10, 21090905), (11, 19173550), (22, 9586775), (25, 8436362), (50, 4218181), (55, 3834710), (71, 2970550), (110, 1917355), (121, 1743050), (142, 1485275), (242, 871525), (275, 766942), (355, 594110), (491, 429550), (550, 383471), (605, 348610), (710, 297055), (781, 270050), (982, 214775), (1210, 174305), (1562, 135025), (1775, 118822), (2455, 85910), (3025, 69722), (3550, 59411), (3905, 54010), (4910, 42955), (5401, 39050), (6050, 34861), (7810, 27005), (8591, 24550), (10802, 19525), (12275, 17182)]