261143260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{491}}^1$

素因数の和:667

約数の個数: 96

約数和(自身を含む): 654635520

約数和(自身を除く): 393492260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 131, 140, 145, 203, 262, 290, 406, 491, 524, 580, 655, 812, 917, 982, 1015, 1310, 1834, 1964, 2030, 2455, 2620, 3437, 3668, 3799, 4060, 4585, 4910, 6874, 7598, 9170, 9820, 13748, 14239, 15196, 17185, 18340, 18995, 26593, 28478, 34370, 37990, 53186, 56956, 64321, 68740, 71195, 75980, 99673, 106372, 128642, 132965, 142390, 199346, 257284, 265930, 284780, 321605, 398692, 450247, 498365, 531860, 643210, 900494, 996730, 1286420, 1800988, 1865309, 1993460, 2251235, 3730618, 4502470, 7461236, 9004940, 9326545, 13057163, 18653090, 26114326, 37306180, 52228652, 65285815, 130571630, 261143260]

約数ペア:

[(1, 261143260), (2, 130571630), (4, 65285815), (5, 52228652), (7, 37306180), (10, 26114326), (14, 18653090), (20, 13057163), (28, 9326545), (29, 9004940), (35, 7461236), (58, 4502470), (70, 3730618), (116, 2251235), (131, 1993460), (140, 1865309), (145, 1800988), (203, 1286420), (262, 996730), (290, 900494), (406, 643210), (491, 531860), (524, 498365), (580, 450247), (655, 398692), (812, 321605), (917, 284780), (982, 265930), (1015, 257284), (1310, 199346), (1834, 142390), (1964, 132965), (2030, 128642), (2455, 106372), (2620, 99673), (3437, 75980), (3668, 71195), (3799, 68740), (4060, 64321), (4585, 56956), (4910, 53186), (6874, 37990), (7598, 34370), (9170, 28478), (9820, 26593), (13748, 18995), (14239, 18340), (15196, 17185)]