16005885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 31518720

約数和(自身を除く): 15512835

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 71, 95, 105, 113, 133, 213, 285, 339, 355, 399, 497, 565, 665, 791, 1065, 1349, 1491, 1695, 1995, 2147, 2373, 2485, 3955, 4047, 6441, 6745, 7455, 8023, 9443, 10735, 11865, 15029, 20235, 24069, 28329, 32205, 40115, 45087, 47215, 56161, 75145, 120345, 141645, 152437, 168483, 225435, 280805, 457311, 762185, 842415, 1067059, 2286555, 3201177, 5335295, 16005885]

約数ペア:

[(1, 16005885), (3, 5335295), (5, 3201177), (7, 2286555), (15, 1067059), (19, 842415), (21, 762185), (35, 457311), (57, 280805), (71, 225435), (95, 168483), (105, 152437), (113, 141645), (133, 120345), (213, 75145), (285, 56161), (339, 47215), (355, 45087), (399, 40115), (497, 32205), (565, 28329), (665, 24069), (791, 20235), (1065, 15029), (1349, 11865), (1491, 10735), (1695, 9443), (1995, 8023), (2147, 7455), (2373, 6745), (2485, 6441), (3955, 4047)]