261660720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{61}}^2\times {\mathrm{293}}^1$

素因数の和:431

約数の個数: 120

約数和(自身を含む): 827478288

約数和(自身を除く): 565817568

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 61, 80, 120, 122, 183, 240, 244, 293, 305, 366, 488, 586, 610, 732, 879, 915, 976, 1172, 1220, 1464, 1465, 1758, 1830, 2344, 2440, 2928, 2930, 3516, 3660, 3721, 4395, 4688, 4880, 5860, 7032, 7320, 7442, 8790, 11163, 11720, 14064, 14640, 14884, 17580, 17873, 18605, 22326, 23440, 29768, 35160, 35746, 37210, 44652, 53619, 55815, 59536, 70320, 71492, 74420, 89304, 89365, 107238, 111630, 142984, 148840, 178608, 178730, 214476, 223260, 268095, 285968, 297680, 357460, 428952, 446520, 536190, 714920, 857904, 893040, 1072380, 1090253, 1429840, 2144760, 2180506, 3270759, 4289520, 4361012, 5451265, 6541518, 8722024, 10902530, 13083036, 16353795, 17444048, 21805060, 26166072, 32707590, 43610120, 52332144, 65415180, 87220240, 130830360, 261660720]

約数ペア:

[(1, 261660720), (2, 130830360), (3, 87220240), (4, 65415180), (5, 52332144), (6, 43610120), (8, 32707590), (10, 26166072), (12, 21805060), (15, 17444048), (16, 16353795), (20, 13083036), (24, 10902530), (30, 8722024), (40, 6541518), (48, 5451265), (60, 4361012), (61, 4289520), (80, 3270759), (120, 2180506), (122, 2144760), (183, 1429840), (240, 1090253), (244, 1072380), (293, 893040), (305, 857904), (366, 714920), (488, 536190), (586, 446520), (610, 428952), (732, 357460), (879, 297680), (915, 285968), (976, 268095), (1172, 223260), (1220, 214476), (1464, 178730), (1465, 178608), (1758, 148840), (1830, 142984), (2344, 111630), (2440, 107238), (2928, 89365), (2930, 89304), (3516, 74420), (3660, 71492), (3721, 70320), (4395, 59536), (4688, 55815), (4880, 53619), (5860, 44652), (7032, 37210), (7320, 35746), (7442, 35160), (8790, 29768), (11163, 23440), (11720, 22326), (14064, 18605), (14640, 17873), (14884, 17580)]