221473920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^2$

素因数の和:175

約数の個数: 192

約数和(自身を含む): 740862720

約数和(自身を除く): 519388800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 61, 62, 64, 80, 93, 96, 120, 122, 124, 128, 155, 160, 183, 186, 192, 240, 244, 248, 305, 310, 320, 366, 372, 384, 465, 480, 488, 496, 610, 620, 640, 732, 744, 915, 930, 960, 976, 992, 1220, 1240, 1464, 1488, 1830, 1860, 1891, 1920, 1952, 1984, 2440, 2480, 2928, 2976, 3660, 3720, 3721, 3782, 3904, 3968, 4880, 4960, 5673, 5856, 5952, 7320, 7440, 7442, 7564, 7808, 9455, 9760, 9920, 11163, 11346, 11712, 11904, 14640, 14880, 14884, 15128, 18605, 18910, 19520, 19840, 22326, 22692, 23424, 28365, 29280, 29760, 29768, 30256, 37210, 37820, 39040, 44652, 45384, 55815, 56730, 58560, 59520, 59536, 60512, 74420, 75640, 89304, 90768, 111630, 113460, 115351, 117120, 119072, 121024, 148840, 151280, 178608, 181536, 223260, 226920, 230702, 238144, 242048, 297680, 302560, 346053, 357216, 363072, 446520, 453840, 461404, 476288, 576755, 595360, 605120, 692106, 714432, 726144, 893040, 907680, 922808, 1153510, 1190720, 1210240, 1384212, 1428864, 1730265, 1786080, 1815360, 1845616, 2307020, 2381440, 2768424, 3460530, 3572160, 3630720, 3691232, 4614040, 5536848, 6921060, 7144320, 7382464, 9228080, 11073696, 13842120, 14764928, 18456160, 22147392, 27684240, 36912320, 44294784, 55368480, 73824640, 110736960, 221473920]

約数ペア:

[(1, 221473920), (2, 110736960), (3, 73824640), (4, 55368480), (5, 44294784), (6, 36912320), (8, 27684240), (10, 22147392), (12, 18456160), (15, 14764928), (16, 13842120), (20, 11073696), (24, 9228080), (30, 7382464), (31, 7144320), (32, 6921060), (40, 5536848), (48, 4614040), (60, 3691232), (61, 3630720), (62, 3572160), (64, 3460530), (80, 2768424), (93, 2381440), (96, 2307020), (120, 1845616), (122, 1815360), (124, 1786080), (128, 1730265), (155, 1428864), (160, 1384212), (183, 1210240), (186, 1190720), (192, 1153510), (240, 922808), (244, 907680), (248, 893040), (305, 726144), (310, 714432), (320, 692106), (366, 605120), (372, 595360), (384, 576755), (465, 476288), (480, 461404), (488, 453840), (496, 446520), (610, 363072), (620, 357216), (640, 346053), (732, 302560), (744, 297680), (915, 242048), (930, 238144), (960, 230702), (976, 226920), (992, 223260), (1220, 181536), (1240, 178608), (1464, 151280), (1488, 148840), (1830, 121024), (1860, 119072), (1891, 117120), (1920, 115351), (1952, 113460), (1984, 111630), (2440, 90768), (2480, 89304), (2928, 75640), (2976, 74420), (3660, 60512), (3720, 59536), (3721, 59520), (3782, 58560), (3904, 56730), (3968, 55815), (4880, 45384), (4960, 44652), (5673, 39040), (5856, 37820), (5952, 37210), (7320, 30256), (7440, 29768), (7442, 29760), (7564, 29280), (7808, 28365), (9455, 23424), (9760, 22692), (9920, 22326), (11163, 19840), (11346, 19520), (11712, 18910), (11904, 18605), (14640, 15128), (14880, 14884)]