81511650

素因数分解:

$2^1\times 3^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{499}}^1$

素因数の和:542

約数の個数: 144

約数和(自身を含む): 247380000

約数和(自身を除く): 165868350

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 27, 30, 33, 45, 50, 54, 55, 66, 75, 90, 99, 110, 121, 135, 150, 165, 198, 225, 242, 270, 275, 297, 330, 363, 450, 495, 499, 550, 594, 605, 675, 726, 825, 990, 998, 1089, 1210, 1350, 1485, 1497, 1650, 1815, 2178, 2475, 2495, 2970, 2994, 3025, 3267, 3630, 4491, 4950, 4990, 5445, 5489, 6050, 6534, 7425, 7485, 8982, 9075, 10890, 10978, 12475, 13473, 14850, 14970, 16335, 16467, 18150, 22455, 24950, 26946, 27225, 27445, 32670, 32934, 37425, 44910, 49401, 54450, 54890, 60379, 67365, 74850, 81675, 82335, 98802, 112275, 120758, 134730, 137225, 148203, 163350, 164670, 181137, 224550, 247005, 274450, 296406, 301895, 336825, 362274, 411675, 494010, 543411, 603790, 673650, 741015, 823350, 905685, 1086822, 1235025, 1482030, 1509475, 1630233, 1811370, 2470050, 2717055, 3018950, 3260466, 3705075, 4528425, 5434110, 7410150, 8151165, 9056850, 13585275, 16302330, 27170550, 40755825, 81511650]

約数ペア:

[(1, 81511650), (2, 40755825), (3, 27170550), (5, 16302330), (6, 13585275), (9, 9056850), (10, 8151165), (11, 7410150), (15, 5434110), (18, 4528425), (22, 3705075), (25, 3260466), (27, 3018950), (30, 2717055), (33, 2470050), (45, 1811370), (50, 1630233), (54, 1509475), (55, 1482030), (66, 1235025), (75, 1086822), (90, 905685), (99, 823350), (110, 741015), (121, 673650), (135, 603790), (150, 543411), (165, 494010), (198, 411675), (225, 362274), (242, 336825), (270, 301895), (275, 296406), (297, 274450), (330, 247005), (363, 224550), (450, 181137), (495, 164670), (499, 163350), (550, 148203), (594, 137225), (605, 134730), (675, 120758), (726, 112275), (825, 98802), (990, 82335), (998, 81675), (1089, 74850), (1210, 67365), (1350, 60379), (1485, 54890), (1497, 54450), (1650, 49401), (1815, 44910), (2178, 37425), (2475, 32934), (2495, 32670), (2970, 27445), (2994, 27225), (3025, 26946), (3267, 24950), (3630, 22455), (4491, 18150), (4950, 16467), (4990, 16335), (5445, 14970), (5489, 14850), (6050, 13473), (6534, 12475), (7425, 10978), (7485, 10890), (8982, 9075)]