408078775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{3313}}^1$

素因数の和:3715

約数の個数: 24

約数和(自身を含む): 546544880

約数和(自身を除く): 138466105

約数列:

[1, 5, 13, 25, 65, 325, 379, 1895, 3313, 4927, 9475, 16565, 24635, 43069, 82825, 123175, 215345, 1076725, 1255627, 6278135, 16323151, 31390675, 81615755, 408078775]

約数ペア:

[(1, 408078775), (5, 81615755), (13, 31390675), (25, 16323151), (65, 6278135), (325, 1255627), (379, 1076725), (1895, 215345), (3313, 123175), (4927, 82825), (9475, 43069), (16565, 24635)]