420230909

素因数分解:

$7^3\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{509}}^1$

素因数の和:642

約数の個数: 32

約数和(自身を含む): 514080000

約数和(自身を除く): 93849091

約数列:

[1, 7, 29, 49, 83, 203, 343, 509, 581, 1421, 2407, 3563, 4067, 9947, 14761, 16849, 24941, 28469, 42247, 103327, 117943, 174587, 295729, 723289, 825601, 1225163, 2070103, 5063023, 8576141, 14490721, 60032987, 420230909]

約数ペア:

[(1, 420230909), (7, 60032987), (29, 14490721), (49, 8576141), (83, 5063023), (203, 2070103), (343, 1225163), (509, 825601), (581, 723289), (1421, 295729), (2407, 174587), (3563, 117943), (4067, 103327), (9947, 42247), (14761, 28469), (16849, 24941)]