1985500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^2$

素因数の和:68

約数の個数: 72

約数和(自身を含む): 4992624

約数和(自身を除く): 3007124

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 125, 190, 209, 220, 250, 275, 361, 380, 418, 475, 500, 550, 722, 836, 950, 1045, 1100, 1375, 1444, 1805, 1900, 2090, 2375, 2750, 3610, 3971, 4180, 4750, 5225, 5500, 7220, 7942, 9025, 9500, 10450, 15884, 18050, 19855, 20900, 26125, 36100, 39710, 45125, 52250, 79420, 90250, 99275, 104500, 180500, 198550, 397100, 496375, 992750, 1985500]

約数ペア:

[(1, 1985500), (2, 992750), (4, 496375), (5, 397100), (10, 198550), (11, 180500), (19, 104500), (20, 99275), (22, 90250), (25, 79420), (38, 52250), (44, 45125), (50, 39710), (55, 36100), (76, 26125), (95, 20900), (100, 19855), (110, 18050), (125, 15884), (190, 10450), (209, 9500), (220, 9025), (250, 7942), (275, 7220), (361, 5500), (380, 5225), (418, 4750), (475, 4180), (500, 3971), (550, 3610), (722, 2750), (836, 2375), (950, 2090), (1045, 1900), (1100, 1805), (1375, 1444)]