217306880

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:414

約数の個数: 144

約数和(自身を含む): 604369920

約数和(自身を除く): 387063040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 79, 80, 112, 128, 140, 158, 160, 224, 256, 280, 307, 316, 320, 395, 448, 553, 560, 614, 632, 640, 790, 896, 1106, 1120, 1228, 1264, 1280, 1535, 1580, 1792, 2149, 2212, 2240, 2456, 2528, 2765, 3070, 3160, 4298, 4424, 4480, 4912, 5056, 5530, 6140, 6320, 8596, 8848, 8960, 9824, 10112, 10745, 11060, 12280, 12640, 17192, 17696, 19648, 20224, 21490, 22120, 24253, 24560, 25280, 34384, 35392, 39296, 42980, 44240, 48506, 49120, 50560, 68768, 70784, 78592, 85960, 88480, 97012, 98240, 101120, 121265, 137536, 141568, 169771, 171920, 176960, 194024, 196480, 242530, 275072, 339542, 343840, 353920, 388048, 392960, 485060, 550144, 679084, 687680, 707840, 776096, 848855, 970120, 1358168, 1375360, 1552192, 1697710, 1940240, 2716336, 2750720, 3104384, 3395420, 3880480, 5432672, 6208768, 6790840, 7760960, 10865344, 13581680, 15521920, 21730688, 27163360, 31043840, 43461376, 54326720, 108653440, 217306880]

約数ペア:

[(1, 217306880), (2, 108653440), (4, 54326720), (5, 43461376), (7, 31043840), (8, 27163360), (10, 21730688), (14, 15521920), (16, 13581680), (20, 10865344), (28, 7760960), (32, 6790840), (35, 6208768), (40, 5432672), (56, 3880480), (64, 3395420), (70, 3104384), (79, 2750720), (80, 2716336), (112, 1940240), (128, 1697710), (140, 1552192), (158, 1375360), (160, 1358168), (224, 970120), (256, 848855), (280, 776096), (307, 707840), (316, 687680), (320, 679084), (395, 550144), (448, 485060), (553, 392960), (560, 388048), (614, 353920), (632, 343840), (640, 339542), (790, 275072), (896, 242530), (1106, 196480), (1120, 194024), (1228, 176960), (1264, 171920), (1280, 169771), (1535, 141568), (1580, 137536), (1792, 121265), (2149, 101120), (2212, 98240), (2240, 97012), (2456, 88480), (2528, 85960), (2765, 78592), (3070, 70784), (3160, 68768), (4298, 50560), (4424, 49120), (4480, 48506), (4912, 44240), (5056, 42980), (5530, 39296), (6140, 35392), (6320, 34384), (8596, 25280), (8848, 24560), (8960, 24253), (9824, 22120), (10112, 21490), (10745, 20224), (11060, 19648), (12280, 17696), (12640, 17192)]