890190

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{157}}^1$

素因数の和:183

約数の個数: 80

約数和(自身を含む): 2752992

約数和(自身を除く): 1862802

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 157, 162, 189, 210, 270, 314, 315, 378, 405, 471, 567, 630, 785, 810, 942, 945, 1099, 1134, 1413, 1570, 1890, 2198, 2355, 2826, 2835, 3297, 4239, 4710, 5495, 5670, 6594, 7065, 8478, 9891, 10990, 12717, 14130, 16485, 19782, 21195, 25434, 29673, 32970, 42390, 49455, 59346, 63585, 89019, 98910, 127170, 148365, 178038, 296730, 445095, 890190]

約数ペア:

[(1, 890190), (2, 445095), (3, 296730), (5, 178038), (6, 148365), (7, 127170), (9, 98910), (10, 89019), (14, 63585), (15, 59346), (18, 49455), (21, 42390), (27, 32970), (30, 29673), (35, 25434), (42, 21195), (45, 19782), (54, 16485), (63, 14130), (70, 12717), (81, 10990), (90, 9891), (105, 8478), (126, 7065), (135, 6594), (157, 5670), (162, 5495), (189, 4710), (210, 4239), (270, 3297), (314, 2835), (315, 2826), (378, 2355), (405, 2198), (471, 1890), (567, 1570), (630, 1413), (785, 1134), (810, 1099), (942, 945)]