8220920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{373}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 20196000

約数和(自身を除く): 11975080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 38, 40, 58, 76, 95, 116, 145, 152, 190, 232, 290, 373, 380, 551, 580, 746, 760, 1102, 1160, 1492, 1865, 2204, 2755, 2984, 3730, 4408, 5510, 7087, 7460, 10817, 11020, 14174, 14920, 21634, 22040, 28348, 35435, 43268, 54085, 56696, 70870, 86536, 108170, 141740, 205523, 216340, 283480, 411046, 432680, 822092, 1027615, 1644184, 2055230, 4110460, 8220920]

約数ペア:

[(1, 8220920), (2, 4110460), (4, 2055230), (5, 1644184), (8, 1027615), (10, 822092), (19, 432680), (20, 411046), (29, 283480), (38, 216340), (40, 205523), (58, 141740), (76, 108170), (95, 86536), (116, 70870), (145, 56696), (152, 54085), (190, 43268), (232, 35435), (290, 28348), (373, 22040), (380, 21634), (551, 14920), (580, 14174), (746, 11020), (760, 10817), (1102, 7460), (1160, 7087), (1492, 5510), (1865, 4408), (2204, 3730), (2755, 2984)]