1215959.00000000

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{563}}^1$

素因数の和:630

約数の個数: 80

約数和(自身を含む): 55389312

約数和(自身を除く): 34085392

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 563, 688, 860, 880, 946, 1126, 1720, 1892, 2252, 2365, 2815, 3440, 3784, 4504, 4730, 5630, 6193, 7568, 9008, 9460, 11260, 12386, 18920, 22520, 24209, 24772, 30965, 37840, 45040, 48418, 49544, 61930, 96836, 99088, 121045, 123860, 193672, 242090, 247720, 266299, 387344, 484180, 495440, 532598, 968360, 1065196, 1331495, 1936720, 2130392, 2662990, 4260784, 5325980, 10651960, 21303920]

約数ペア:

[(1, 21303920), (2, 10651960), (4, 5325980), (5, 4260784), (8, 2662990), (10, 2130392), (11, 1936720), (16, 1331495), (20, 1065196), (22, 968360), (40, 532598), (43, 495440), (44, 484180), (55, 387344), (80, 266299), (86, 247720), (88, 242090), (110, 193672), (172, 123860), (176, 121045), (215, 99088), (220, 96836), (344, 61930), (430, 49544), (440, 48418), (473, 45040), (563, 37840), (688, 30965), (860, 24772), (880, 24209), (946, 22520), (1126, 18920), (1720, 12386), (1892, 11260), (2252, 9460), (2365, 9008), (2815, 7568), (3440, 6193), (3784, 5630), (4504, 4730)]