394019920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{22697}}^1$

素因数の和:22748

約数の個数: 80

約数和(自身を含む): 1080787968

約数和(自身を除く): 686768048

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, 22697, 45394, 90788, 113485, 158879, 181576, 226970, 317758, 363152, 453940, 635516, 703607, 794395, 907880, 1271032, 1407214, 1588790, 1815760, 2542064, 2814428, 3177580, 3518035, 4925249, 5628856, 6355160, 7036070, 9850498, 11257712, 12710320, 14072140, 19700996, 24626245, 28144280, 39401992, 49252490, 56288560, 78803984, 98504980, 197009960, 394019920]

約数ペア:

[(1, 394019920), (2, 197009960), (4, 98504980), (5, 78803984), (7, 56288560), (8, 49252490), (10, 39401992), (14, 28144280), (16, 24626245), (20, 19700996), (28, 14072140), (31, 12710320), (35, 11257712), (40, 9850498), (56, 7036070), (62, 6355160), (70, 5628856), (80, 4925249), (112, 3518035), (124, 3177580), (140, 2814428), (155, 2542064), (217, 1815760), (248, 1588790), (280, 1407214), (310, 1271032), (434, 907880), (496, 794395), (560, 703607), (620, 635516), (868, 453940), (1085, 363152), (1240, 317758), (1736, 226970), (2170, 181576), (2480, 158879), (3472, 113485), (4340, 90788), (8680, 45394), (17360, 22697)]