1221228720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{9371}}^1$

素因数の和:9571

約数の個数: 120

約数和(自身を含む): 4124392272

約数和(自身を除く): 2903163552

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 181, 240, 360, 362, 543, 720, 724, 905, 1086, 1448, 1629, 1810, 2172, 2715, 2896, 3258, 3620, 4344, 5430, 6516, 7240, 8145, 8688, 9371, 10860, 13032, 14480, 16290, 18742, 21720, 26064, 28113, 32580, 37484, 43440, 46855, 56226, 65160, 74968, 84339, 93710, 112452, 130320, 140565, 149936, 168678, 187420, 224904, 281130, 337356, 374840, 421695, 449808, 562260, 674712, 749680, 843390, 1124520, 1349424, 1686780, 1696151, 2249040, 3373560, 3392302, 5088453, 6747120, 6784604, 8480755, 10176906, 13569208, 15265359, 16961510, 20353812, 25442265, 27138416, 30530718, 33923020, 40707624, 50884530, 61061436, 67846040, 76326795, 81415248, 101769060, 122122872, 135692080, 152653590, 203538120, 244245744, 305307180, 407076240, 610614360, 1221228720]

約数ペア:

[(1, 1221228720), (2, 610614360), (3, 407076240), (4, 305307180), (5, 244245744), (6, 203538120), (8, 152653590), (9, 135692080), (10, 122122872), (12, 101769060), (15, 81415248), (16, 76326795), (18, 67846040), (20, 61061436), (24, 50884530), (30, 40707624), (36, 33923020), (40, 30530718), (45, 27138416), (48, 25442265), (60, 20353812), (72, 16961510), (80, 15265359), (90, 13569208), (120, 10176906), (144, 8480755), (180, 6784604), (181, 6747120), (240, 5088453), (360, 3392302), (362, 3373560), (543, 2249040), (720, 1696151), (724, 1686780), (905, 1349424), (1086, 1124520), (1448, 843390), (1629, 749680), (1810, 674712), (2172, 562260), (2715, 449808), (2896, 421695), (3258, 374840), (3620, 337356), (4344, 281130), (5430, 224904), (6516, 187420), (7240, 168678), (8145, 149936), (8688, 140565), (9371, 130320), (10860, 112452), (13032, 93710), (14480, 84339), (16290, 74968), (18742, 65160), (21720, 56226), (26064, 46855), (28113, 43440), (32580, 37484)]