2018719665

素因数分解:

$3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1993}}^1$

素因数の和:2112

約数の個数: 80

約数和(自身を含む): 3769664976

約数和(自身を除く): 1750945311

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 61, 81, 123, 135, 183, 205, 305, 369, 405, 549, 615, 915, 1107, 1647, 1845, 1993, 2501, 2745, 3321, 4941, 5535, 5979, 7503, 8235, 9965, 12505, 16605, 17937, 22509, 24705, 29895, 37515, 53811, 67527, 81713, 89685, 112545, 121573, 161433, 202581, 245139, 269055, 337635, 364719, 408565, 607865, 735417, 807165, 1012905, 1094157, 1225695, 1823595, 2206251, 3282471, 3677085, 4984493, 5470785, 6618753, 9847413, 11031255, 14953479, 16412355, 24922465, 33093765, 44860437, 49237065, 74767395, 134581311, 224302185, 403743933, 672906555, 2018719665]

約数ペア:

[(1, 2018719665), (3, 672906555), (5, 403743933), (9, 224302185), (15, 134581311), (27, 74767395), (41, 49237065), (45, 44860437), (61, 33093765), (81, 24922465), (123, 16412355), (135, 14953479), (183, 11031255), (205, 9847413), (305, 6618753), (369, 5470785), (405, 4984493), (549, 3677085), (615, 3282471), (915, 2206251), (1107, 1823595), (1647, 1225695), (1845, 1094157), (1993, 1012905), (2501, 807165), (2745, 735417), (3321, 607865), (4941, 408565), (5535, 364719), (5979, 337635), (7503, 269055), (8235, 245139), (9965, 202581), (12505, 161433), (16605, 121573), (17937, 112545), (22509, 89685), (24705, 81713), (29895, 67527), (37515, 53811)]