17996120

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:696

約数の個数: 64

約数和(自身を含む): 43683840

約数和(自身を除く): 25687720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 184, 230, 248, 310, 460, 620, 631, 713, 920, 1240, 1262, 1426, 2524, 2852, 3155, 3565, 5048, 5704, 6310, 7130, 12620, 14260, 14513, 19561, 25240, 28520, 29026, 39122, 58052, 72565, 78244, 97805, 116104, 145130, 156488, 195610, 290260, 391220, 449903, 580520, 782440, 899806, 1799612, 2249515, 3599224, 4499030, 8998060, 17996120]

約数ペア:

[(1, 17996120), (2, 8998060), (4, 4499030), (5, 3599224), (8, 2249515), (10, 1799612), (20, 899806), (23, 782440), (31, 580520), (40, 449903), (46, 391220), (62, 290260), (92, 195610), (115, 156488), (124, 145130), (155, 116104), (184, 97805), (230, 78244), (248, 72565), (310, 58052), (460, 39122), (620, 29026), (631, 28520), (713, 25240), (920, 19561), (1240, 14513), (1262, 14260), (1426, 12620), (2524, 7130), (2852, 6310), (3155, 5704), (3565, 5048)]