20193225

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 36456000

約数和(自身を除く): 16262775

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 139, 149, 195, 325, 417, 447, 695, 745, 975, 1807, 1937, 2085, 2235, 3475, 3725, 5421, 5811, 9035, 9685, 10425, 11175, 20711, 27105, 29055, 45175, 48425, 62133, 103555, 135525, 145275, 269243, 310665, 517775, 807729, 1346215, 1553325, 4038645, 6731075, 20193225]

約数ペア:

[(1, 20193225), (3, 6731075), (5, 4038645), (13, 1553325), (15, 1346215), (25, 807729), (39, 517775), (65, 310665), (75, 269243), (139, 145275), (149, 135525), (195, 103555), (325, 62133), (417, 48425), (447, 45175), (695, 29055), (745, 27105), (975, 20711), (1807, 11175), (1937, 10425), (2085, 9685), (2235, 9035), (3475, 5811), (3725, 5421)]