727304020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1\times {\mathrm{479}}^1$

素因数の和:629

約数の個数: 72

約数和(自身を含む): 1601510400

約数和(自身を除く): 874206380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 395, 479, 620, 790, 958, 961, 1580, 1916, 1922, 2395, 2449, 3844, 4790, 4805, 4898, 9580, 9610, 9796, 12245, 14849, 19220, 24490, 29698, 37841, 48980, 59396, 74245, 75682, 75919, 148490, 151364, 151838, 189205, 296980, 303676, 378410, 379595, 460319, 756820, 759190, 920638, 1173071, 1518380, 1841276, 2301595, 2346142, 4603190, 4692284, 5865355, 9206380, 11730710, 23461420, 36365201, 72730402, 145460804, 181826005, 363652010, 727304020]

約数ペア:

[(1, 727304020), (2, 363652010), (4, 181826005), (5, 145460804), (10, 72730402), (20, 36365201), (31, 23461420), (62, 11730710), (79, 9206380), (124, 5865355), (155, 4692284), (158, 4603190), (310, 2346142), (316, 2301595), (395, 1841276), (479, 1518380), (620, 1173071), (790, 920638), (958, 759190), (961, 756820), (1580, 460319), (1916, 379595), (1922, 378410), (2395, 303676), (2449, 296980), (3844, 189205), (4790, 151838), (4805, 151364), (4898, 148490), (9580, 75919), (9610, 75682), (9796, 74245), (12245, 59396), (14849, 48980), (19220, 37841), (24490, 29698)]