18055000

素因数分解:

$2^3\times 5^4\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:206

約数の個数: 80

約数和(自身を含む): 44423280

約数和(自身を除く): 26368280

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 125, 157, 184, 200, 230, 250, 314, 460, 500, 575, 625, 628, 785, 920, 1000, 1150, 1250, 1256, 1570, 2300, 2500, 2875, 3140, 3611, 3925, 4600, 5000, 5750, 6280, 7222, 7850, 11500, 14375, 14444, 15700, 18055, 19625, 23000, 28750, 28888, 31400, 36110, 39250, 57500, 72220, 78500, 90275, 98125, 115000, 144440, 157000, 180550, 196250, 361100, 392500, 451375, 722200, 785000, 902750, 1805500, 2256875, 3611000, 4513750, 9027500, 18055000]

約数ペア:

[(1, 18055000), (2, 9027500), (4, 4513750), (5, 3611000), (8, 2256875), (10, 1805500), (20, 902750), (23, 785000), (25, 722200), (40, 451375), (46, 392500), (50, 361100), (92, 196250), (100, 180550), (115, 157000), (125, 144440), (157, 115000), (184, 98125), (200, 90275), (230, 78500), (250, 72220), (314, 57500), (460, 39250), (500, 36110), (575, 31400), (625, 28888), (628, 28750), (785, 23000), (920, 19625), (1000, 18055), (1150, 15700), (1250, 14444), (1256, 14375), (1570, 11500), (2300, 7850), (2500, 7222), (2875, 6280), (3140, 5750), (3611, 5000), (3925, 4600)]