20218842496

素因数分解:

$2^7\times {\mathrm{83}}^1\times {\mathrm{641}}^1\times {\mathrm{2969}}^1$

素因数の和:3707

約数の個数: 64

約数和(自身を含む): 40842370800

約数和(自身を除く): 20623528304

約数列:

[1, 2, 4, 8, 16, 32, 64, 83, 128, 166, 332, 641, 664, 1282, 1328, 2564, 2656, 2969, 5128, 5312, 5938, 10256, 10624, 11876, 20512, 23752, 41024, 47504, 53203, 82048, 95008, 106406, 190016, 212812, 246427, 380032, 425624, 492854, 851248, 985708, 1702496, 1903129, 1971416, 3404992, 3806258, 3942832, 6809984, 7612516, 7885664, 15225032, 15771328, 30450064, 31542656, 60900128, 121800256, 157959707, 243600512, 315919414, 631838828, 1263677656, 2527355312, 5054710624, 10109421248, 20218842496]

約数ペア:

[(1, 20218842496), (2, 10109421248), (4, 5054710624), (8, 2527355312), (16, 1263677656), (32, 631838828), (64, 315919414), (83, 243600512), (128, 157959707), (166, 121800256), (332, 60900128), (641, 31542656), (664, 30450064), (1282, 15771328), (1328, 15225032), (2564, 7885664), (2656, 7612516), (2969, 6809984), (5128, 3942832), (5312, 3806258), (5938, 3404992), (10256, 1971416), (10624, 1903129), (11876, 1702496), (20512, 985708), (23752, 851248), (41024, 492854), (47504, 425624), (53203, 380032), (82048, 246427), (95008, 212812), (106406, 190016)]