161005975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 226173024

約数和(自身を除く): 65167049

約数列:

[1, 5, 13, 25, 41, 43, 65, 205, 215, 281, 325, 533, 559, 1025, 1075, 1405, 1763, 2665, 2795, 3653, 7025, 8815, 11521, 12083, 13325, 13975, 18265, 22919, 44075, 57605, 60415, 91325, 114595, 149773, 157079, 288025, 302075, 495403, 572975, 748865, 785395, 2477015, 3744325, 3926975, 6440239, 12385075, 32201195, 161005975]

約数ペア:

[(1, 161005975), (5, 32201195), (13, 12385075), (25, 6440239), (41, 3926975), (43, 3744325), (65, 2477015), (205, 785395), (215, 748865), (281, 572975), (325, 495403), (533, 302075), (559, 288025), (1025, 157079), (1075, 149773), (1405, 114595), (1763, 91325), (2665, 60415), (2795, 57605), (3653, 44075), (7025, 22919), (8815, 18265), (11521, 13975), (12083, 13325)]