81917360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7699}}^1$

素因数の和:7738

約数の個数: 80

約数和(自身を含む): 229152000

約数和(自身を除く): 147234640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2128, 2660, 5320, 7699, 10640, 15398, 30796, 38495, 53893, 61592, 76990, 107786, 123184, 146281, 153980, 215572, 269465, 292562, 307960, 431144, 538930, 585124, 615920, 731405, 862288, 1023967, 1077860, 1170248, 1462810, 2047934, 2155720, 2340496, 2925620, 4095868, 4311440, 5119835, 5851240, 8191736, 10239670, 11702480, 16383472, 20479340, 40958680, 81917360]

約数ペア:

[(1, 81917360), (2, 40958680), (4, 20479340), (5, 16383472), (7, 11702480), (8, 10239670), (10, 8191736), (14, 5851240), (16, 5119835), (19, 4311440), (20, 4095868), (28, 2925620), (35, 2340496), (38, 2155720), (40, 2047934), (56, 1462810), (70, 1170248), (76, 1077860), (80, 1023967), (95, 862288), (112, 731405), (133, 615920), (140, 585124), (152, 538930), (190, 431144), (266, 307960), (280, 292562), (304, 269465), (380, 215572), (532, 153980), (560, 146281), (665, 123184), (760, 107786), (1064, 76990), (1330, 61592), (1520, 53893), (2128, 38495), (2660, 30796), (5320, 15398), (7699, 10640)]