638483440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{36779}}^1$

素因数の和:36830

約数の個数: 80

約数和(自身を含む): 1751316480

約数和(自身を除く): 1112833040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 17360, 36779, 73558, 147116, 183895, 257453, 294232, 367790, 514906, 588464, 735580, 1029812, 1140149, 1287265, 1471160, 2059624, 2280298, 2574530, 2942320, 4119248, 4560596, 5149060, 5700745, 7981043, 9121192, 10298120, 11401490, 15962086, 18242384, 20596240, 22802980, 31924172, 39905215, 45605960, 63848344, 79810430, 91211920, 127696688, 159620860, 319241720, 638483440]

約数ペア:

[(1, 638483440), (2, 319241720), (4, 159620860), (5, 127696688), (7, 91211920), (8, 79810430), (10, 63848344), (14, 45605960), (16, 39905215), (20, 31924172), (28, 22802980), (31, 20596240), (35, 18242384), (40, 15962086), (56, 11401490), (62, 10298120), (70, 9121192), (80, 7981043), (112, 5700745), (124, 5149060), (140, 4560596), (155, 4119248), (217, 2942320), (248, 2574530), (280, 2280298), (310, 2059624), (434, 1471160), (496, 1287265), (560, 1140149), (620, 1029812), (868, 735580), (1085, 588464), (1240, 514906), (1736, 367790), (2170, 294232), (2480, 257453), (3472, 183895), (4340, 147116), (8680, 73558), (17360, 36779)]