221497920

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{10987}}^1$

素因数の和:11017

約数の個数: 168

約数和(自身を含む): 870777024

約数和(自身を除く): 649279104

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1120, 1260, 1344, 1440, 1680, 2016, 2240, 2520, 2880, 3360, 4032, 5040, 6720, 10080, 10987, 20160, 21974, 32961, 43948, 54935, 65922, 76909, 87896, 98883, 109870, 131844, 153818, 164805, 175792, 197766, 219740, 230727, 263688, 307636, 329610, 351584, 384545, 395532, 439480, 461454, 494415, 527376, 615272, 659220, 692181, 703168, 769090, 791064, 878960, 922908, 988830, 1054752, 1153635, 1230544, 1318440, 1384362, 1538180, 1582128, 1757920, 1845816, 1977660, 2109504, 2307270, 2461088, 2636880, 2768724, 3076360, 3164256, 3460905, 3515840, 3691632, 3955320, 4614540, 4922176, 5273760, 5537448, 6152720, 6328512, 6921810, 7383264, 7910640, 9229080, 10547520, 11074896, 12305440, 13843620, 14766528, 15821280, 18458160, 22149792, 24610880, 27687240, 31642560, 36916320, 44299584, 55374480, 73832640, 110748960, 221497920]

約数ペア:

[(1, 221497920), (2, 110748960), (3, 73832640), (4, 55374480), (5, 44299584), (6, 36916320), (7, 31642560), (8, 27687240), (9, 24610880), (10, 22149792), (12, 18458160), (14, 15821280), (15, 14766528), (16, 13843620), (18, 12305440), (20, 11074896), (21, 10547520), (24, 9229080), (28, 7910640), (30, 7383264), (32, 6921810), (35, 6328512), (36, 6152720), (40, 5537448), (42, 5273760), (45, 4922176), (48, 4614540), (56, 3955320), (60, 3691632), (63, 3515840), (64, 3460905), (70, 3164256), (72, 3076360), (80, 2768724), (84, 2636880), (90, 2461088), (96, 2307270), (105, 2109504), (112, 1977660), (120, 1845816), (126, 1757920), (140, 1582128), (144, 1538180), (160, 1384362), (168, 1318440), (180, 1230544), (192, 1153635), (210, 1054752), (224, 988830), (240, 922908), (252, 878960), (280, 791064), (288, 769090), (315, 703168), (320, 692181), (336, 659220), (360, 615272), (420, 527376), (448, 494415), (480, 461454), (504, 439480), (560, 395532), (576, 384545), (630, 351584), (672, 329610), (720, 307636), (840, 263688), (960, 230727), (1008, 219740), (1120, 197766), (1260, 175792), (1344, 164805), (1440, 153818), (1680, 131844), (2016, 109870), (2240, 98883), (2520, 87896), (2880, 76909), (3360, 65922), (4032, 54935), (5040, 43948), (6720, 32961), (10080, 21974), (10987, 20160)]