996965780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1\times {\mathrm{3203}}^1$

素因数の和:3488

約数の個数: 48

約数和(自身を含む): 2131557120

約数和(自身を除く): 1134591340

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 197, 316, 394, 395, 788, 790, 985, 1580, 1970, 3203, 3940, 6406, 12812, 15563, 16015, 31126, 32030, 62252, 64060, 77815, 155630, 253037, 311260, 506074, 630991, 1012148, 1261982, 1265185, 2523964, 2530370, 3154955, 5060740, 6309910, 12619820, 49848289, 99696578, 199393156, 249241445, 498482890, 996965780]

約数ペア:

[(1, 996965780), (2, 498482890), (4, 249241445), (5, 199393156), (10, 99696578), (20, 49848289), (79, 12619820), (158, 6309910), (197, 5060740), (316, 3154955), (394, 2530370), (395, 2523964), (788, 1265185), (790, 1261982), (985, 1012148), (1580, 630991), (1970, 506074), (3203, 311260), (3940, 253037), (6406, 155630), (12812, 77815), (15563, 64060), (16015, 62252), (31126, 32030)]