19845780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 59076864

約数和(自身を除く): 39231084

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 73, 92, 115, 138, 146, 197, 219, 230, 276, 292, 345, 365, 394, 438, 460, 591, 690, 730, 788, 876, 985, 1095, 1182, 1380, 1460, 1679, 1970, 2190, 2364, 2955, 3358, 3940, 4380, 4531, 5037, 5910, 6716, 8395, 9062, 10074, 11820, 13593, 14381, 16790, 18124, 20148, 22655, 25185, 27186, 28762, 33580, 43143, 45310, 50370, 54372, 57524, 67965, 71905, 86286, 90620, 100740, 135930, 143810, 172572, 215715, 271860, 287620, 330763, 431430, 661526, 862860, 992289, 1323052, 1653815, 1984578, 3307630, 3969156, 4961445, 6615260, 9922890, 19845780]

約数ペア:

[(1, 19845780), (2, 9922890), (3, 6615260), (4, 4961445), (5, 3969156), (6, 3307630), (10, 1984578), (12, 1653815), (15, 1323052), (20, 992289), (23, 862860), (30, 661526), (46, 431430), (60, 330763), (69, 287620), (73, 271860), (92, 215715), (115, 172572), (138, 143810), (146, 135930), (197, 100740), (219, 90620), (230, 86286), (276, 71905), (292, 67965), (345, 57524), (365, 54372), (394, 50370), (438, 45310), (460, 43143), (591, 33580), (690, 28762), (730, 27186), (788, 25185), (876, 22655), (985, 20148), (1095, 18124), (1182, 16790), (1380, 14381), (1460, 13593), (1679, 11820), (1970, 10074), (2190, 9062), (2364, 8395), (2955, 6716), (3358, 5910), (3940, 5037), (4380, 4531)]