428666520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{373}}^1$

素因数の和:605

約数の個数: 128

約数和(自身を含む): 1318933440

約数和(自身を除く): 890266920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 157, 183, 244, 305, 314, 366, 373, 471, 488, 610, 628, 732, 746, 785, 915, 942, 1119, 1220, 1256, 1464, 1492, 1570, 1830, 1865, 1884, 2238, 2355, 2440, 2984, 3140, 3660, 3730, 3768, 4476, 4710, 5595, 6280, 7320, 7460, 8952, 9420, 9577, 11190, 14920, 18840, 19154, 22380, 22753, 28731, 38308, 44760, 45506, 47885, 57462, 58561, 68259, 76616, 91012, 95770, 113765, 114924, 117122, 136518, 143655, 175683, 182024, 191540, 227530, 229848, 234244, 273036, 287310, 292805, 341295, 351366, 383080, 455060, 468488, 546072, 574620, 585610, 682590, 702732, 878415, 910120, 1149240, 1171220, 1365180, 1405464, 1756830, 2342440, 2730360, 3513660, 3572221, 7027320, 7144442, 10716663, 14288884, 17861105, 21433326, 28577768, 35722210, 42866652, 53583315, 71444420, 85733304, 107166630, 142888840, 214333260, 428666520]

約数ペア:

[(1, 428666520), (2, 214333260), (3, 142888840), (4, 107166630), (5, 85733304), (6, 71444420), (8, 53583315), (10, 42866652), (12, 35722210), (15, 28577768), (20, 21433326), (24, 17861105), (30, 14288884), (40, 10716663), (60, 7144442), (61, 7027320), (120, 3572221), (122, 3513660), (157, 2730360), (183, 2342440), (244, 1756830), (305, 1405464), (314, 1365180), (366, 1171220), (373, 1149240), (471, 910120), (488, 878415), (610, 702732), (628, 682590), (732, 585610), (746, 574620), (785, 546072), (915, 468488), (942, 455060), (1119, 383080), (1220, 351366), (1256, 341295), (1464, 292805), (1492, 287310), (1570, 273036), (1830, 234244), (1865, 229848), (1884, 227530), (2238, 191540), (2355, 182024), (2440, 175683), (2984, 143655), (3140, 136518), (3660, 117122), (3730, 114924), (3768, 113765), (4476, 95770), (4710, 91012), (5595, 76616), (6280, 68259), (7320, 58561), (7460, 57462), (8952, 47885), (9420, 45506), (9577, 44760), (11190, 38308), (14920, 28731), (18840, 22753), (19154, 22380)]