212379560

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{431}}^1$

素因数の和:666

約数の個数: 64

約数和(自身を含む): 487710720

約数和(自身を除く): 275331160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 127, 194, 254, 388, 431, 485, 508, 635, 776, 862, 970, 1016, 1270, 1724, 1940, 2155, 2540, 3448, 3880, 4310, 5080, 8620, 12319, 17240, 24638, 41807, 49276, 54737, 61595, 83614, 98552, 109474, 123190, 167228, 209035, 218948, 246380, 273685, 334456, 418070, 437896, 492760, 547370, 836140, 1094740, 1672280, 2189480, 5309489, 10618978, 21237956, 26547445, 42475912, 53094890, 106189780, 212379560]

約数ペア:

[(1, 212379560), (2, 106189780), (4, 53094890), (5, 42475912), (8, 26547445), (10, 21237956), (20, 10618978), (40, 5309489), (97, 2189480), (127, 1672280), (194, 1094740), (254, 836140), (388, 547370), (431, 492760), (485, 437896), (508, 418070), (635, 334456), (776, 273685), (862, 246380), (970, 218948), (1016, 209035), (1270, 167228), (1724, 123190), (1940, 109474), (2155, 98552), (2540, 83614), (3448, 61595), (3880, 54737), (4310, 49276), (5080, 41807), (8620, 24638), (12319, 17240)]