80961720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^4\times {\mathrm{281}}^1$

素因数の和:323

約数の個数: 160

約数和(自身を含む): 284357520

約数和(自身を除く): 203395800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 281, 294, 343, 392, 420, 490, 562, 588, 686, 735, 840, 843, 980, 1029, 1124, 1176, 1372, 1405, 1470, 1686, 1715, 1960, 1967, 2058, 2248, 2401, 2744, 2810, 2940, 3372, 3430, 3934, 4116, 4215, 4802, 5145, 5620, 5880, 5901, 6744, 6860, 7203, 7868, 8232, 8430, 9604, 9835, 10290, 11240, 11802, 12005, 13720, 13769, 14406, 15736, 16860, 19208, 19670, 20580, 23604, 24010, 27538, 28812, 29505, 33720, 36015, 39340, 41160, 41307, 47208, 48020, 55076, 57624, 59010, 68845, 72030, 78680, 82614, 96040, 96383, 110152, 118020, 137690, 144060, 165228, 192766, 206535, 236040, 275380, 288120, 289149, 330456, 385532, 413070, 481915, 550760, 578298, 674681, 771064, 826140, 963830, 1156596, 1349362, 1445745, 1652280, 1927660, 2024043, 2313192, 2698724, 2891490, 3373405, 3855320, 4048086, 5397448, 5782980, 6746810, 8096172, 10120215, 11565960, 13493620, 16192344, 20240430, 26987240, 40480860, 80961720]

約数ペア:

[(1, 80961720), (2, 40480860), (3, 26987240), (4, 20240430), (5, 16192344), (6, 13493620), (7, 11565960), (8, 10120215), (10, 8096172), (12, 6746810), (14, 5782980), (15, 5397448), (20, 4048086), (21, 3855320), (24, 3373405), (28, 2891490), (30, 2698724), (35, 2313192), (40, 2024043), (42, 1927660), (49, 1652280), (56, 1445745), (60, 1349362), (70, 1156596), (84, 963830), (98, 826140), (105, 771064), (120, 674681), (140, 578298), (147, 550760), (168, 481915), (196, 413070), (210, 385532), (245, 330456), (280, 289149), (281, 288120), (294, 275380), (343, 236040), (392, 206535), (420, 192766), (490, 165228), (562, 144060), (588, 137690), (686, 118020), (735, 110152), (840, 96383), (843, 96040), (980, 82614), (1029, 78680), (1124, 72030), (1176, 68845), (1372, 59010), (1405, 57624), (1470, 55076), (1686, 48020), (1715, 47208), (1960, 41307), (1967, 41160), (2058, 39340), (2248, 36015), (2401, 33720), (2744, 29505), (2810, 28812), (2940, 27538), (3372, 24010), (3430, 23604), (3934, 20580), (4116, 19670), (4215, 19208), (4802, 16860), (5145, 15736), (5620, 14406), (5880, 13769), (5901, 13720), (6744, 12005), (6860, 11802), (7203, 11240), (7868, 10290), (8232, 9835), (8430, 9604)]