221472720

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{43943}}^1$

素因数の和:43969

約数の個数: 120

約数和(自身を含む): 850052736

約数和(自身を除く): 628580016

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 43943, 87886, 131829, 175772, 219715, 263658, 307601, 351544, 395487, 439430, 527316, 615202, 659145, 703088, 790974, 878860, 922803, 1054632, 1230404, 1318290, 1538005, 1581948, 1757720, 1845606, 1977435, 2109264, 2460808, 2636580, 2768409, 3076010, 3163896, 3515440, 3691212, 3954870, 4614015, 4921616, 5273160, 5536818, 6152020, 6327792, 7382424, 7909740, 9228030, 10546320, 11073636, 12304040, 13842045, 14764848, 15819480, 18456060, 22147272, 24608080, 27684090, 31638960, 36912120, 44294544, 55368180, 73824240, 110736360, 221472720]

約数ペア:

[(1, 221472720), (2, 110736360), (3, 73824240), (4, 55368180), (5, 44294544), (6, 36912120), (7, 31638960), (8, 27684090), (9, 24608080), (10, 22147272), (12, 18456060), (14, 15819480), (15, 14764848), (16, 13842045), (18, 12304040), (20, 11073636), (21, 10546320), (24, 9228030), (28, 7909740), (30, 7382424), (35, 6327792), (36, 6152020), (40, 5536818), (42, 5273160), (45, 4921616), (48, 4614015), (56, 3954870), (60, 3691212), (63, 3515440), (70, 3163896), (72, 3076010), (80, 2768409), (84, 2636580), (90, 2460808), (105, 2109264), (112, 1977435), (120, 1845606), (126, 1757720), (140, 1581948), (144, 1538005), (168, 1318290), (180, 1230404), (210, 1054632), (240, 922803), (252, 878860), (280, 790974), (315, 703088), (336, 659145), (360, 615202), (420, 527316), (504, 439430), (560, 395487), (630, 351544), (720, 307601), (840, 263658), (1008, 219715), (1260, 175772), (1680, 131829), (2520, 87886), (5040, 43943)]