90068860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1259}}^1$

素因数の和:1355

約数の個数: 72

約数和(自身を含む): 223216560

約数和(自身を除く): 133147700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 196, 245, 292, 365, 490, 511, 730, 980, 1022, 1259, 1460, 2044, 2518, 2555, 3577, 5036, 5110, 6295, 7154, 8813, 10220, 12590, 14308, 17626, 17885, 25180, 35252, 35770, 44065, 61691, 71540, 88130, 91907, 123382, 176260, 183814, 246764, 308455, 367628, 459535, 616910, 643349, 919070, 1233820, 1286698, 1838140, 2573396, 3216745, 4503443, 6433490, 9006886, 12866980, 18013772, 22517215, 45034430, 90068860]

約数ペア:

[(1, 90068860), (2, 45034430), (4, 22517215), (5, 18013772), (7, 12866980), (10, 9006886), (14, 6433490), (20, 4503443), (28, 3216745), (35, 2573396), (49, 1838140), (70, 1286698), (73, 1233820), (98, 919070), (140, 643349), (146, 616910), (196, 459535), (245, 367628), (292, 308455), (365, 246764), (490, 183814), (511, 176260), (730, 123382), (980, 91907), (1022, 88130), (1259, 71540), (1460, 61691), (2044, 44065), (2518, 35770), (2555, 35252), (3577, 25180), (5036, 17885), (5110, 17626), (6295, 14308), (7154, 12590), (8813, 10220)]