18804524980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2143}}^1\times {\mathrm{14153}}^1$

素因数の和:16336

約数の個数: 48

約数和(自身を含む): 40785260544

約数和(自身を除く): 21980735564

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2143, 4286, 8572, 10715, 14153, 21430, 28306, 42860, 56612, 66433, 70765, 132866, 141530, 265732, 283060, 332165, 438743, 664330, 877486, 1328660, 1754972, 2193715, 4387430, 8774860, 30329879, 60659758, 121319516, 151649395, 303298790, 606597580, 940226249, 1880452498, 3760904996, 4701131245, 9402262490, 18804524980]

約数ペア:

[(1, 18804524980), (2, 9402262490), (4, 4701131245), (5, 3760904996), (10, 1880452498), (20, 940226249), (31, 606597580), (62, 303298790), (124, 151649395), (155, 121319516), (310, 60659758), (620, 30329879), (2143, 8774860), (4286, 4387430), (8572, 2193715), (10715, 1754972), (14153, 1328660), (21430, 877486), (28306, 664330), (42860, 438743), (56612, 332165), (66433, 283060), (70765, 265732), (132866, 141530)]