641745664

素因数分解:

$2^8\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2281}}^1$

素因数の和:2461

約数の個数: 72

約数和(自身を含む): 1473952928

約数和(自身を除く): 832207264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 157, 224, 256, 314, 448, 628, 896, 1099, 1256, 1792, 2198, 2281, 2512, 4396, 4562, 5024, 8792, 9124, 10048, 15967, 17584, 18248, 20096, 31934, 35168, 36496, 40192, 63868, 70336, 72992, 127736, 140672, 145984, 255472, 281344, 291968, 358117, 510944, 583936, 716234, 1021888, 1432468, 2043776, 2506819, 2864936, 4087552, 5013638, 5729872, 10027276, 11459744, 20054552, 22919488, 40109104, 45838976, 80218208, 91677952, 160436416, 320872832, 641745664]

約数ペア:

[(1, 641745664), (2, 320872832), (4, 160436416), (7, 91677952), (8, 80218208), (14, 45838976), (16, 40109104), (28, 22919488), (32, 20054552), (56, 11459744), (64, 10027276), (112, 5729872), (128, 5013638), (157, 4087552), (224, 2864936), (256, 2506819), (314, 2043776), (448, 1432468), (628, 1021888), (896, 716234), (1099, 583936), (1256, 510944), (1792, 358117), (2198, 291968), (2281, 281344), (2512, 255472), (4396, 145984), (4562, 140672), (5024, 127736), (8792, 72992), (9124, 70336), (10048, 63868), (15967, 40192), (17584, 36496), (18248, 35168), (20096, 31934)]