30268720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^2$

素因数の和:230

約数の個数: 60

約数和(自身を含む): 72356976

約数和(自身を除く): 42088256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 73, 80, 142, 146, 284, 292, 355, 365, 568, 584, 710, 730, 1136, 1168, 1420, 1460, 2840, 2920, 5183, 5329, 5680, 5840, 10366, 10658, 20732, 21316, 25915, 26645, 41464, 42632, 51830, 53290, 82928, 85264, 103660, 106580, 207320, 213160, 378359, 414640, 426320, 756718, 1513436, 1891795, 3026872, 3783590, 6053744, 7567180, 15134360, 30268720]

約数ペア:

[(1, 30268720), (2, 15134360), (4, 7567180), (5, 6053744), (8, 3783590), (10, 3026872), (16, 1891795), (20, 1513436), (40, 756718), (71, 426320), (73, 414640), (80, 378359), (142, 213160), (146, 207320), (284, 106580), (292, 103660), (355, 85264), (365, 82928), (568, 53290), (584, 51830), (710, 42632), (730, 41464), (1136, 26645), (1168, 25915), (1420, 21316), (1460, 20732), (2840, 10658), (2920, 10366), (5183, 5840), (5329, 5680)]