257985280

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{28793}}^1$

素因数の和:28821

約数の個数: 72

約数和(自身を含む): 706259232

約数和(自身を除く): 448273952

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 28793, 57586, 115172, 143965, 201551, 230344, 287930, 403102, 460688, 575860, 806204, 921376, 1007755, 1151720, 1612408, 1842752, 2015510, 2303440, 3224816, 3685504, 4031020, 4606880, 6449632, 7371008, 8062040, 9213760, 12899264, 16124080, 18427520, 25798528, 32248160, 36855040, 51597056, 64496320, 128992640, 257985280]

約数ペア:

[(1, 257985280), (2, 128992640), (4, 64496320), (5, 51597056), (7, 36855040), (8, 32248160), (10, 25798528), (14, 18427520), (16, 16124080), (20, 12899264), (28, 9213760), (32, 8062040), (35, 7371008), (40, 6449632), (56, 4606880), (64, 4031020), (70, 3685504), (80, 3224816), (112, 2303440), (128, 2015510), (140, 1842752), (160, 1612408), (224, 1151720), (256, 1007755), (280, 921376), (320, 806204), (448, 575860), (560, 460688), (640, 403102), (896, 287930), (1120, 230344), (1280, 201551), (1792, 143965), (2240, 115172), (4480, 57586), (8960, 28793)]