80548975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 116242560

約数和(自身を除く): 35693585

約数列:

[1, 5, 13, 17, 25, 61, 65, 85, 221, 239, 305, 325, 425, 793, 1037, 1105, 1195, 1525, 3107, 3965, 4063, 5185, 5525, 5975, 13481, 14579, 15535, 19825, 20315, 25925, 52819, 67405, 72895, 77675, 101575, 189527, 247843, 264095, 337025, 364475, 947635, 1239215, 1320475, 3221959, 4738175, 6196075, 16109795, 80548975]

約数ペア:

[(1, 80548975), (5, 16109795), (13, 6196075), (17, 4738175), (25, 3221959), (61, 1320475), (65, 1239215), (85, 947635), (221, 364475), (239, 337025), (305, 264095), (325, 247843), (425, 189527), (793, 101575), (1037, 77675), (1105, 72895), (1195, 67405), (1525, 52819), (3107, 25925), (3965, 20315), (4063, 19825), (5185, 15535), (5525, 14579), (5975, 13481)]