18535640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^3$

素因数の和:117

約数の個数: 64

約数和(自身を含む): 45468000

約数和(自身を除く): 26932360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 38, 40, 58, 76, 95, 116, 145, 152, 190, 232, 290, 380, 551, 580, 760, 841, 1102, 1160, 1682, 2204, 2755, 3364, 4205, 4408, 5510, 6728, 8410, 11020, 15979, 16820, 22040, 24389, 31958, 33640, 48778, 63916, 79895, 97556, 121945, 127832, 159790, 195112, 243890, 319580, 463391, 487780, 639160, 926782, 975560, 1853564, 2316955, 3707128, 4633910, 9267820, 18535640]

約数ペア:

[(1, 18535640), (2, 9267820), (4, 4633910), (5, 3707128), (8, 2316955), (10, 1853564), (19, 975560), (20, 926782), (29, 639160), (38, 487780), (40, 463391), (58, 319580), (76, 243890), (95, 195112), (116, 159790), (145, 127832), (152, 121945), (190, 97556), (232, 79895), (290, 63916), (380, 48778), (551, 33640), (580, 31958), (760, 24389), (841, 22040), (1102, 16820), (1160, 15979), (1682, 11020), (2204, 8410), (2755, 6728), (3364, 5510), (4205, 4408)]