257948480

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47417}}^1$

素因数の和:47451

約数の個数: 56

約数和(自身を含む): 650385288

約数和(自身を除く): 392436808

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 5440, 47417, 94834, 189668, 237085, 379336, 474170, 758672, 806089, 948340, 1517344, 1612178, 1896680, 3034688, 3224356, 3793360, 4030445, 6448712, 7586720, 8060890, 12897424, 15173440, 16121780, 25794848, 32243560, 51589696, 64487120, 128974240, 257948480]

約数ペア:

[(1, 257948480), (2, 128974240), (4, 64487120), (5, 51589696), (8, 32243560), (10, 25794848), (16, 16121780), (17, 15173440), (20, 12897424), (32, 8060890), (34, 7586720), (40, 6448712), (64, 4030445), (68, 3793360), (80, 3224356), (85, 3034688), (136, 1896680), (160, 1612178), (170, 1517344), (272, 948340), (320, 806089), (340, 758672), (544, 474170), (680, 379336), (1088, 237085), (1360, 189668), (2720, 94834), (5440, 47417)]