388351405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{811}}^1$

素因数の和:1021

約数の個数: 32

約数和(自身を含む): 515652480

約数和(自身を除く): 127301075

約数列:

[1, 5, 13, 53, 65, 139, 265, 689, 695, 811, 1807, 3445, 4055, 7367, 9035, 10543, 36835, 42983, 52715, 95771, 112729, 214915, 478855, 558779, 563645, 1465477, 2793895, 5974637, 7327385, 29873185, 77670281, 388351405]

約数ペア:

[(1, 388351405), (5, 77670281), (13, 29873185), (53, 7327385), (65, 5974637), (139, 2793895), (265, 1465477), (689, 563645), (695, 558779), (811, 478855), (1807, 214915), (3445, 112729), (4055, 95771), (7367, 52715), (9035, 42983), (10543, 36835)]