40816405

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{379}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 59754240

約数和(自身を除く): 18937835

約数列:

[1, 5, 7, 17, 35, 85, 119, 181, 379, 595, 905, 1267, 1895, 2653, 3077, 6335, 6443, 13265, 15385, 21539, 32215, 45101, 68599, 107695, 225505, 342995, 480193, 1166183, 2400965, 5830915, 8163281, 40816405]

約数ペア:

[(1, 40816405), (5, 8163281), (7, 5830915), (17, 2400965), (35, 1166183), (85, 480193), (119, 342995), (181, 225505), (379, 107695), (595, 68599), (905, 45101), (1267, 32215), (1895, 21539), (2653, 15385), (3077, 13265), (6335, 6443)]