221730880

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:289

約数の個数: 168

約数和(自身を含む): 625449600

約数和(自身を除く): 403718720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 79, 80, 98, 112, 140, 158, 160, 179, 196, 224, 245, 280, 316, 320, 358, 392, 395, 448, 490, 553, 560, 632, 716, 784, 790, 895, 980, 1106, 1120, 1253, 1264, 1432, 1568, 1580, 1790, 1960, 2212, 2240, 2506, 2528, 2765, 2864, 3136, 3160, 3580, 3871, 3920, 4424, 5012, 5056, 5530, 5728, 6265, 6320, 7160, 7742, 7840, 8771, 8848, 10024, 11060, 11456, 12530, 12640, 14141, 14320, 15484, 15680, 17542, 17696, 19355, 20048, 22120, 25060, 25280, 28282, 28640, 30968, 35084, 35392, 38710, 40096, 43855, 44240, 50120, 56564, 57280, 61936, 70168, 70705, 77420, 80192, 87710, 88480, 98987, 100240, 113128, 123872, 140336, 141410, 154840, 175420, 176960, 197974, 200480, 226256, 247744, 280672, 282820, 309680, 350840, 395948, 400960, 452512, 494935, 561344, 565640, 619360, 692909, 701680, 791896, 905024, 989870, 1131280, 1238720, 1385818, 1403360, 1583792, 1979740, 2262560, 2771636, 2806720, 3167584, 3464545, 3959480, 4525120, 5543272, 6335168, 6929090, 7918960, 11086544, 13858180, 15837920, 22173088, 27716360, 31675840, 44346176, 55432720, 110865440, 221730880]

約数ペア:

[(1, 221730880), (2, 110865440), (4, 55432720), (5, 44346176), (7, 31675840), (8, 27716360), (10, 22173088), (14, 15837920), (16, 13858180), (20, 11086544), (28, 7918960), (32, 6929090), (35, 6335168), (40, 5543272), (49, 4525120), (56, 3959480), (64, 3464545), (70, 3167584), (79, 2806720), (80, 2771636), (98, 2262560), (112, 1979740), (140, 1583792), (158, 1403360), (160, 1385818), (179, 1238720), (196, 1131280), (224, 989870), (245, 905024), (280, 791896), (316, 701680), (320, 692909), (358, 619360), (392, 565640), (395, 561344), (448, 494935), (490, 452512), (553, 400960), (560, 395948), (632, 350840), (716, 309680), (784, 282820), (790, 280672), (895, 247744), (980, 226256), (1106, 200480), (1120, 197974), (1253, 176960), (1264, 175420), (1432, 154840), (1568, 141410), (1580, 140336), (1790, 123872), (1960, 113128), (2212, 100240), (2240, 98987), (2506, 88480), (2528, 87710), (2765, 80192), (2864, 77420), (3136, 70705), (3160, 70168), (3580, 61936), (3871, 57280), (3920, 56564), (4424, 50120), (5012, 44240), (5056, 43855), (5530, 40096), (5728, 38710), (6265, 35392), (6320, 35084), (7160, 30968), (7742, 28640), (7840, 28282), (8771, 25280), (8848, 25060), (10024, 22120), (11060, 20048), (11456, 19355), (12530, 17696), (12640, 17542), (14141, 15680), (14320, 15484)]