84378280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9721}}^1$

素因数の和:9770

約数の個数: 64

約数和(自身を含む): 223994880

約数和(自身を除く): 139616600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 9721, 19442, 38884, 48605, 68047, 77768, 97210, 136094, 194420, 272188, 301351, 340235, 388840, 544376, 602702, 680470, 1205404, 1360940, 1506755, 2109457, 2410808, 2721880, 3013510, 4218914, 6027020, 8437828, 10547285, 12054040, 16875656, 21094570, 42189140, 84378280]

約数ペア:

[(1, 84378280), (2, 42189140), (4, 21094570), (5, 16875656), (7, 12054040), (8, 10547285), (10, 8437828), (14, 6027020), (20, 4218914), (28, 3013510), (31, 2721880), (35, 2410808), (40, 2109457), (56, 1506755), (62, 1360940), (70, 1205404), (124, 680470), (140, 602702), (155, 544376), (217, 388840), (248, 340235), (280, 301351), (310, 272188), (434, 194420), (620, 136094), (868, 97210), (1085, 77768), (1240, 68047), (1736, 48605), (2170, 38884), (4340, 19442), (8680, 9721)]