138369920

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16631}}^1$

素因数の和:16663

約数の個数: 64

約数和(自身を含む): 356257440

約数和(自身を除く): 217887520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 16631, 33262, 66524, 83155, 133048, 166310, 216203, 266096, 332620, 432406, 532192, 665240, 864812, 1064384, 1081015, 1330480, 1729624, 2128768, 2162030, 2660960, 3459248, 4324060, 5321920, 6918496, 8648120, 10643840, 13836992, 17296240, 27673984, 34592480, 69184960, 138369920]

約数ペア:

[(1, 138369920), (2, 69184960), (4, 34592480), (5, 27673984), (8, 17296240), (10, 13836992), (13, 10643840), (16, 8648120), (20, 6918496), (26, 5321920), (32, 4324060), (40, 3459248), (52, 2660960), (64, 2162030), (65, 2128768), (80, 1729624), (104, 1330480), (128, 1081015), (130, 1064384), (160, 864812), (208, 665240), (260, 532192), (320, 432406), (416, 332620), (520, 266096), (640, 216203), (832, 166310), (1040, 133048), (1664, 83155), (2080, 66524), (4160, 33262), (8320, 16631)]