688640260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{1871}}^1$

素因数の和:2137

約数の個数: 96

約数和(自身を含む): 1811496960

約数和(自身を除く): 1122856700

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 239, 308, 385, 478, 770, 956, 1195, 1540, 1673, 1871, 2390, 2629, 3346, 3742, 4780, 5258, 6692, 7484, 8365, 9355, 10516, 13097, 13145, 16730, 18403, 18710, 20581, 26194, 26290, 33460, 36806, 37420, 41162, 52388, 52580, 65485, 73612, 82324, 92015, 102905, 130970, 144067, 184030, 205810, 261940, 288134, 368060, 411620, 447169, 576268, 720335, 894338, 1440670, 1788676, 2235845, 2881340, 3130183, 4471690, 4918859, 6260366, 8943380, 9837718, 12520732, 15650915, 19675436, 24594295, 31301830, 34432013, 49188590, 62603660, 68864026, 98377180, 137728052, 172160065, 344320130, 688640260]

約数ペア:

[(1, 688640260), (2, 344320130), (4, 172160065), (5, 137728052), (7, 98377180), (10, 68864026), (11, 62603660), (14, 49188590), (20, 34432013), (22, 31301830), (28, 24594295), (35, 19675436), (44, 15650915), (55, 12520732), (70, 9837718), (77, 8943380), (110, 6260366), (140, 4918859), (154, 4471690), (220, 3130183), (239, 2881340), (308, 2235845), (385, 1788676), (478, 1440670), (770, 894338), (956, 720335), (1195, 576268), (1540, 447169), (1673, 411620), (1871, 368060), (2390, 288134), (2629, 261940), (3346, 205810), (3742, 184030), (4780, 144067), (5258, 130970), (6692, 102905), (7484, 92015), (8365, 82324), (9355, 73612), (10516, 65485), (13097, 52580), (13145, 52388), (16730, 41162), (18403, 37420), (18710, 36806), (20581, 33460), (26194, 26290)]