20367192520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1789}}^1\times {\mathrm{6619}}^1$

素因数の和:8462

約数の個数: 64

約数和(自身を含む): 46925208000

約数和(自身を除く): 26558015480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1789, 3578, 6619, 7156, 8945, 13238, 14312, 17890, 26476, 33095, 35780, 52952, 66190, 71560, 76927, 132380, 153854, 264760, 284617, 307708, 384635, 569234, 615416, 769270, 1138468, 1423085, 1538540, 2276936, 2846170, 3077080, 5692340, 11384680, 11841391, 23682782, 47365564, 59206955, 94731128, 118413910, 236827820, 473655640, 509179813, 1018359626, 2036719252, 2545899065, 4073438504, 5091798130, 10183596260, 20367192520]

約数ペア:

[(1, 20367192520), (2, 10183596260), (4, 5091798130), (5, 4073438504), (8, 2545899065), (10, 2036719252), (20, 1018359626), (40, 509179813), (43, 473655640), (86, 236827820), (172, 118413910), (215, 94731128), (344, 59206955), (430, 47365564), (860, 23682782), (1720, 11841391), (1789, 11384680), (3578, 5692340), (6619, 3077080), (7156, 2846170), (8945, 2276936), (13238, 1538540), (14312, 1423085), (17890, 1138468), (26476, 769270), (33095, 615416), (35780, 569234), (52952, 384635), (66190, 307708), (71560, 284617), (76927, 264760), (132380, 153854)]