39218680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{907}}^1$

素因数の和:988

約数の個数: 64

約数和(自身を含む): 94141440

約数和(自身を除く): 54922760

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 47, 92, 94, 115, 184, 188, 230, 235, 376, 460, 470, 907, 920, 940, 1081, 1814, 1880, 2162, 3628, 4324, 4535, 5405, 7256, 8648, 9070, 10810, 18140, 20861, 21620, 36280, 41722, 42629, 43240, 83444, 85258, 104305, 166888, 170516, 208610, 213145, 341032, 417220, 426290, 834440, 852580, 980467, 1705160, 1960934, 3921868, 4902335, 7843736, 9804670, 19609340, 39218680]

約数ペア:

[(1, 39218680), (2, 19609340), (4, 9804670), (5, 7843736), (8, 4902335), (10, 3921868), (20, 1960934), (23, 1705160), (40, 980467), (46, 852580), (47, 834440), (92, 426290), (94, 417220), (115, 341032), (184, 213145), (188, 208610), (230, 170516), (235, 166888), (376, 104305), (460, 85258), (470, 83444), (907, 43240), (920, 42629), (940, 41722), (1081, 36280), (1814, 21620), (1880, 20861), (2162, 18140), (3628, 10810), (4324, 9070), (4535, 8648), (5405, 7256)]