209947360

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{439}}^1$

素因数の和:529

約数の個数: 144

約数和(自身を含む): 587774880

約数和(自身を除く): 377827520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 61, 70, 80, 98, 112, 122, 140, 160, 196, 224, 244, 245, 280, 305, 392, 427, 439, 488, 490, 560, 610, 784, 854, 878, 976, 980, 1120, 1220, 1568, 1708, 1756, 1952, 1960, 2135, 2195, 2440, 2989, 3073, 3416, 3512, 3920, 4270, 4390, 4880, 5978, 6146, 6832, 7024, 7840, 8540, 8780, 9760, 11956, 12292, 13664, 14048, 14945, 15365, 17080, 17560, 21511, 23912, 24584, 26779, 29890, 30730, 34160, 35120, 43022, 47824, 49168, 53558, 59780, 61460, 68320, 70240, 86044, 95648, 98336, 107116, 107555, 119560, 122920, 133895, 172088, 187453, 214232, 215110, 239120, 245840, 267790, 344176, 374906, 428464, 430220, 478240, 491680, 535580, 688352, 749812, 856928, 860440, 937265, 1071160, 1312171, 1499624, 1720880, 1874530, 2142320, 2624342, 2999248, 3441760, 3749060, 4284640, 5248684, 5998496, 6560855, 7498120, 10497368, 13121710, 14996240, 20994736, 26243420, 29992480, 41989472, 52486840, 104973680, 209947360]

約数ペア:

[(1, 209947360), (2, 104973680), (4, 52486840), (5, 41989472), (7, 29992480), (8, 26243420), (10, 20994736), (14, 14996240), (16, 13121710), (20, 10497368), (28, 7498120), (32, 6560855), (35, 5998496), (40, 5248684), (49, 4284640), (56, 3749060), (61, 3441760), (70, 2999248), (80, 2624342), (98, 2142320), (112, 1874530), (122, 1720880), (140, 1499624), (160, 1312171), (196, 1071160), (224, 937265), (244, 860440), (245, 856928), (280, 749812), (305, 688352), (392, 535580), (427, 491680), (439, 478240), (488, 430220), (490, 428464), (560, 374906), (610, 344176), (784, 267790), (854, 245840), (878, 239120), (976, 215110), (980, 214232), (1120, 187453), (1220, 172088), (1568, 133895), (1708, 122920), (1756, 119560), (1952, 107555), (1960, 107116), (2135, 98336), (2195, 95648), (2440, 86044), (2989, 70240), (3073, 68320), (3416, 61460), (3512, 59780), (3920, 53558), (4270, 49168), (4390, 47824), (4880, 43022), (5978, 35120), (6146, 34160), (6832, 30730), (7024, 29890), (7840, 26779), (8540, 24584), (8780, 23912), (9760, 21511), (11956, 17560), (12292, 17080), (13664, 15365), (14048, 14945)]