215261520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{28933}}^1$

素因数の和:28980

約数の個数: 80

約数和(自身を含む): 688860672

約数和(自身を除く): 473599152

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 28933, 57866, 86799, 115732, 144665, 173598, 231464, 289330, 347196, 433995, 462928, 578660, 694392, 867990, 896923, 1157320, 1388784, 1735980, 1793846, 2314640, 2690769, 3471960, 3587692, 4484615, 5381538, 6943920, 7175384, 8969230, 10763076, 13453845, 14350768, 17938460, 21526152, 26907690, 35876920, 43052304, 53815380, 71753840, 107630760, 215261520]

約数ペア:

[(1, 215261520), (2, 107630760), (3, 71753840), (4, 53815380), (5, 43052304), (6, 35876920), (8, 26907690), (10, 21526152), (12, 17938460), (15, 14350768), (16, 13453845), (20, 10763076), (24, 8969230), (30, 7175384), (31, 6943920), (40, 5381538), (48, 4484615), (60, 3587692), (62, 3471960), (80, 2690769), (93, 2314640), (120, 1793846), (124, 1735980), (155, 1388784), (186, 1157320), (240, 896923), (248, 867990), (310, 694392), (372, 578660), (465, 462928), (496, 433995), (620, 347196), (744, 289330), (930, 231464), (1240, 173598), (1488, 144665), (1860, 115732), (2480, 86799), (3720, 57866), (7440, 28933)]