1618454960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{18047}}^1$

素因数の和:18138

約数の個数: 80

約数和(自身を含む): 4028313600

約数和(自身を除く): 2409858640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 59, 76, 80, 95, 118, 152, 190, 236, 295, 304, 380, 472, 590, 760, 944, 1121, 1180, 1520, 2242, 2360, 4484, 4720, 5605, 8968, 11210, 17936, 18047, 22420, 36094, 44840, 72188, 89680, 90235, 144376, 180470, 288752, 342893, 360940, 685786, 721880, 1064773, 1371572, 1443760, 1714465, 2129546, 2743144, 3428930, 4259092, 5323865, 5486288, 6857860, 8518184, 10647730, 13715720, 17036368, 20230687, 21295460, 27431440, 40461374, 42590920, 80922748, 85181840, 101153435, 161845496, 202306870, 323690992, 404613740, 809227480, 1618454960]

約数ペア:

[(1, 1618454960), (2, 809227480), (4, 404613740), (5, 323690992), (8, 202306870), (10, 161845496), (16, 101153435), (19, 85181840), (20, 80922748), (38, 42590920), (40, 40461374), (59, 27431440), (76, 21295460), (80, 20230687), (95, 17036368), (118, 13715720), (152, 10647730), (190, 8518184), (236, 6857860), (295, 5486288), (304, 5323865), (380, 4259092), (472, 3428930), (590, 2743144), (760, 2129546), (944, 1714465), (1121, 1443760), (1180, 1371572), (1520, 1064773), (2242, 721880), (2360, 685786), (4484, 360940), (4720, 342893), (5605, 288752), (8968, 180470), (11210, 144376), (17936, 90235), (18047, 89680), (22420, 72188), (36094, 44840)]