128976680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{599}}^1\times {\mathrm{769}}^1$

素因数の和:1386

約数の個数: 64

約数和(自身を含む): 332640000

約数和(自身を除く): 203663320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 599, 769, 1198, 1538, 2396, 2995, 3076, 3845, 4193, 4792, 5383, 5990, 6152, 7690, 8386, 10766, 11980, 15380, 16772, 20965, 21532, 23960, 26915, 30760, 33544, 41930, 43064, 53830, 83860, 107660, 167720, 215320, 460631, 921262, 1842524, 2303155, 3224417, 3685048, 4606310, 6448834, 9212620, 12897668, 16122085, 18425240, 25795336, 32244170, 64488340, 128976680]

約数ペア:

[(1, 128976680), (2, 64488340), (4, 32244170), (5, 25795336), (7, 18425240), (8, 16122085), (10, 12897668), (14, 9212620), (20, 6448834), (28, 4606310), (35, 3685048), (40, 3224417), (56, 2303155), (70, 1842524), (140, 921262), (280, 460631), (599, 215320), (769, 167720), (1198, 107660), (1538, 83860), (2396, 53830), (2995, 43064), (3076, 41930), (3845, 33544), (4193, 30760), (4792, 26915), (5383, 23960), (5990, 21532), (6152, 20965), (7690, 16772), (8386, 15380), (10766, 11980)]