254978720

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{51407}}^1$

素因数の和:51453

約数の個数: 48

約数和(自身を含む): 621831168

約数和(自身を除く): 366852448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 51407, 102814, 205628, 257035, 411256, 514070, 822512, 1028140, 1593617, 1645024, 2056280, 3187234, 4112560, 6374468, 7968085, 8225120, 12748936, 15936170, 25497872, 31872340, 50995744, 63744680, 127489360, 254978720]

約数ペア:

[(1, 254978720), (2, 127489360), (4, 63744680), (5, 50995744), (8, 31872340), (10, 25497872), (16, 15936170), (20, 12748936), (31, 8225120), (32, 7968085), (40, 6374468), (62, 4112560), (80, 3187234), (124, 2056280), (155, 1645024), (160, 1593617), (248, 1028140), (310, 822512), (496, 514070), (620, 411256), (992, 257035), (1240, 205628), (2480, 102814), (4960, 51407)]