221515920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{103}}^2$

素因数の和:254

約数の個数: 180

約数和(自身を含む): 777121020

約数和(自身を除く): 555605100

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 103, 116, 120, 144, 145, 174, 180, 206, 232, 240, 261, 290, 309, 348, 360, 412, 435, 464, 515, 522, 580, 618, 696, 720, 824, 870, 927, 1030, 1044, 1160, 1236, 1305, 1392, 1545, 1648, 1740, 1854, 2060, 2088, 2320, 2472, 2610, 2987, 3090, 3480, 3708, 4120, 4176, 4635, 4944, 5220, 5974, 6180, 6960, 7416, 8240, 8961, 9270, 10440, 10609, 11948, 12360, 14832, 14935, 17922, 18540, 20880, 21218, 23896, 24720, 26883, 29870, 31827, 35844, 37080, 42436, 44805, 47792, 53045, 53766, 59740, 63654, 71688, 74160, 84872, 89610, 95481, 106090, 107532, 119480, 127308, 134415, 143376, 159135, 169744, 179220, 190962, 212180, 215064, 238960, 254616, 268830, 307661, 318270, 358440, 381924, 424360, 430128, 477405, 509232, 537660, 615322, 636540, 716880, 763848, 848720, 922983, 954810, 1075320, 1230644, 1273080, 1527696, 1538305, 1845966, 1909620, 2150640, 2461288, 2546160, 2768949, 3076610, 3691932, 3819240, 4614915, 4922576, 5537898, 6153220, 7383864, 7638480, 9229830, 11075796, 12306440, 13844745, 14767728, 18459660, 22151592, 24612880, 27689490, 36919320, 44303184, 55378980, 73838640, 110757960, 221515920]

約数ペア:

[(1, 221515920), (2, 110757960), (3, 73838640), (4, 55378980), (5, 44303184), (6, 36919320), (8, 27689490), (9, 24612880), (10, 22151592), (12, 18459660), (15, 14767728), (16, 13844745), (18, 12306440), (20, 11075796), (24, 9229830), (29, 7638480), (30, 7383864), (36, 6153220), (40, 5537898), (45, 4922576), (48, 4614915), (58, 3819240), (60, 3691932), (72, 3076610), (80, 2768949), (87, 2546160), (90, 2461288), (103, 2150640), (116, 1909620), (120, 1845966), (144, 1538305), (145, 1527696), (174, 1273080), (180, 1230644), (206, 1075320), (232, 954810), (240, 922983), (261, 848720), (290, 763848), (309, 716880), (348, 636540), (360, 615322), (412, 537660), (435, 509232), (464, 477405), (515, 430128), (522, 424360), (580, 381924), (618, 358440), (696, 318270), (720, 307661), (824, 268830), (870, 254616), (927, 238960), (1030, 215064), (1044, 212180), (1160, 190962), (1236, 179220), (1305, 169744), (1392, 159135), (1545, 143376), (1648, 134415), (1740, 127308), (1854, 119480), (2060, 107532), (2088, 106090), (2320, 95481), (2472, 89610), (2610, 84872), (2987, 74160), (3090, 71688), (3480, 63654), (3708, 59740), (4120, 53766), (4176, 53045), (4635, 47792), (4944, 44805), (5220, 42436), (5974, 37080), (6180, 35844), (6960, 31827), (7416, 29870), (8240, 26883), (8961, 24720), (9270, 23896), (10440, 21218), (10609, 20880), (11948, 18540), (12360, 17922), (14832, 14935)]