28489000

素因数分解:

$2^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:971

約数の個数: 64

約数和(自身を含む): 68889600

約数和(自身を除く): 40400600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 125, 155, 200, 248, 250, 310, 500, 620, 775, 919, 1000, 1240, 1550, 1838, 3100, 3676, 3875, 4595, 6200, 7352, 7750, 9190, 15500, 18380, 22975, 28489, 31000, 36760, 45950, 56978, 91900, 113956, 114875, 142445, 183800, 227912, 229750, 284890, 459500, 569780, 712225, 919000, 1139560, 1424450, 2848900, 3561125, 5697800, 7122250, 14244500, 28489000]

約数ペア:

[(1, 28489000), (2, 14244500), (4, 7122250), (5, 5697800), (8, 3561125), (10, 2848900), (20, 1424450), (25, 1139560), (31, 919000), (40, 712225), (50, 569780), (62, 459500), (100, 284890), (124, 229750), (125, 227912), (155, 183800), (200, 142445), (248, 114875), (250, 113956), (310, 91900), (500, 56978), (620, 45950), (775, 36760), (919, 31000), (1000, 28489), (1240, 22975), (1550, 18380), (1838, 15500), (3100, 9190), (3676, 7750), (3875, 7352), (4595, 6200)]