1320809985

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{751}}^1$

素因数の和:820

約数の個数: 144

約数和(自身を含む): 2808449280

約数和(自身を除く): 1487639295

約数列:

[1, 3, 5, 9, 11, 15, 17, 19, 33, 45, 51, 55, 57, 85, 95, 99, 121, 153, 165, 171, 187, 209, 255, 285, 323, 363, 495, 561, 605, 627, 751, 765, 855, 935, 969, 1045, 1089, 1615, 1683, 1815, 1881, 2057, 2253, 2299, 2805, 2907, 3135, 3553, 3755, 4845, 5445, 6171, 6759, 6897, 8261, 8415, 9405, 10285, 10659, 11265, 11495, 12767, 14269, 14535, 17765, 18513, 20691, 24783, 30855, 31977, 33795, 34485, 38301, 39083, 41305, 42807, 53295, 63835, 71345, 74349, 90871, 92565, 103455, 114903, 117249, 123915, 128421, 140437, 156959, 159885, 191505, 195415, 214035, 242573, 272613, 351747, 371745, 421311, 454355, 470877, 574515, 586245, 642105, 702185, 727719, 784795, 817839, 1212865, 1263933, 1363065, 1412631, 1544807, 1726549, 1758735, 2106555, 2183157, 2354385, 2668303, 3638595, 4089195, 4634421, 5179647, 6319665, 7063155, 7724035, 8004909, 8632745, 10915785, 13341515, 13903263, 15538941, 23172105, 24014727, 25898235, 29351333, 40024545, 69516315, 77694705, 88053999, 120073635, 146756665, 264161997, 440269995, 1320809985]

約数ペア:

[(1, 1320809985), (3, 440269995), (5, 264161997), (9, 146756665), (11, 120073635), (15, 88053999), (17, 77694705), (19, 69516315), (33, 40024545), (45, 29351333), (51, 25898235), (55, 24014727), (57, 23172105), (85, 15538941), (95, 13903263), (99, 13341515), (121, 10915785), (153, 8632745), (165, 8004909), (171, 7724035), (187, 7063155), (209, 6319665), (255, 5179647), (285, 4634421), (323, 4089195), (363, 3638595), (495, 2668303), (561, 2354385), (605, 2183157), (627, 2106555), (751, 1758735), (765, 1726549), (855, 1544807), (935, 1412631), (969, 1363065), (1045, 1263933), (1089, 1212865), (1615, 817839), (1683, 784795), (1815, 727719), (1881, 702185), (2057, 642105), (2253, 586245), (2299, 574515), (2805, 470877), (2907, 454355), (3135, 421311), (3553, 371745), (3755, 351747), (4845, 272613), (5445, 242573), (6171, 214035), (6759, 195415), (6897, 191505), (8261, 159885), (8415, 156959), (9405, 140437), (10285, 128421), (10659, 123915), (11265, 117249), (11495, 114903), (12767, 103455), (14269, 92565), (14535, 90871), (17765, 74349), (18513, 71345), (20691, 63835), (24783, 53295), (30855, 42807), (31977, 41305), (33795, 39083), (34485, 38301)]